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Li X, Guan W, Liu H, Yuan J, Wang F, Guan B, Chen J, Lu Q, Zhang L, Xu G. Targeting PNPO to suppress tumor growth via inhibiting autophagic flux and to reverse paclitaxel resistance in ovarian cancer. Apoptosis 2024; 29:1546-1563. [PMID: 38615082 PMCID: PMC11416418 DOI: 10.1007/s10495-024-01956-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2024] [Indexed: 04/15/2024]
Abstract
Our previous study showed that pyridoxine 5'-phosphate oxidase (PNPO) is a tissue biomarker of ovarian cancer (OC) and has a prognostic implication but detailed mechanisms remain unclear. The current study focused on PNPO-regulated lysosome/autophagy-mediated cellular processes and the potential role of PNPO in chemoresistance. We found that PNPO was overexpressed in OC cells and was a prognostic factor in OC patients. PNPO significantly promoted cell proliferation via the regulation of cyclin B1 and phosphorylated CDK1 and shortened the G2M phase in a cell cycle. Overexpressed PNPO enhanced the biogenesis and perinuclear distribution of lysosomes, promoting the degradation of autophagosomes and boosting the autophagic flux. Further, an autolysosome marker LAMP2 was upregulated in OC cells. Silencing LAMP2 suppressed cell growth and induced cell apoptosis. LAMP2-siRNA blocked PNPO action in OC cells, indicating that the function of PNPO on cellular processes was mediated by LAMP2. These data suggest the existence of the PNPO-LAMP2 axis. Moreover, silencing PNPO suppressed xenographic tumor formation. Chloroquine counteracted the promotion effect of PNPO on autophagic flux and inhibited OC cell survival, facilitating the inhibitory effect of PNPO-shRNA on tumor growth in vivo. Finally, PNPO was overexpressed in paclitaxel-resistant OC cells. PNPO-siRNA enhanced paclitaxel sensitivity in vitro and in vivo. In conclusion, PNPO has a regulatory effect on lysosomal biogenesis that in turn promotes autophagic flux, leading to OC cell proliferation, and tumor formation, and is a paclitaxel-resistant factor. These data imply a potential application by targeting PNPO to suppress tumor growth and reverse PTX resistance in OC.
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Affiliation(s)
- Xin Li
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wencai Guan
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China
| | - Huiqiang Liu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jia Yuan
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fanchen Wang
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Bin Guan
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Junyu Chen
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qi Lu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Obstetrics and Gynecology, Jinshan Hospital, Fudan University, Shanghai, China
| | - Lingyun Zhang
- Department of Medical Oncology, Shanghai Geriatric Medical Center, Shanghai, China.
- Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Guoxiong Xu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
- Center for Tumor Diagnosis and Therapy, Jinshan Hospital, Fudan University, Shanghai, China.
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2
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Guo L. F-ATP synthase inhibitory factor 1 and mitochondria-organelle interactions: New insight and implications. Pharmacol Res 2024; 208:107393. [PMID: 39233058 DOI: 10.1016/j.phrs.2024.107393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 08/08/2024] [Accepted: 08/30/2024] [Indexed: 09/06/2024]
Abstract
Mitochondria are metabolic hub, and act as primary sites for reactive oxygen species (ROS) and metabolites generation. Mitochondrial Ca2+ uptake contributes to Ca2+ storage. Mitochondria-organelle interactions are important for cellular metabolic adaptation, biosynthesis, redox balance, cell fate. Organelle communications are mediated by Ca2+/ROS signals, vesicle transport and membrane contact sites. The permeability transition pore (PTP) is an unselective channel that provides a release pathway for Ca2+/ROS, mtDNA and metabolites. F-ATP synthase inhibitory factor 1 (IF1) participates in regulation of PTP opening and is required for the translocation of transcriptional factors c-Myc/PGC1α to mitochondria to stimulate metabolic switch. IF1, a mitochondrial specific protein, has been suggested to regulate other organelles including nucleus, endoplasmic reticulum and lysosomes. IF1 may be able to mediate mitochondria-organelle interactions and cellular physiology through regulation of PTP activity.
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Affiliation(s)
- Lishu Guo
- Tongji University Cancer Center, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China; Department of Anesthesiology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA.
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3
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Bonacina F, Zhang X, Manel N, Yvan-Charvet L, Razani B, Norata GD. Lysosomes in the immunometabolic reprogramming of immune cells in atherosclerosis. Nat Rev Cardiol 2024:10.1038/s41569-024-01072-4. [PMID: 39304748 DOI: 10.1038/s41569-024-01072-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/08/2024] [Indexed: 09/22/2024]
Abstract
Lysosomes have a central role in the disposal of extracellular and intracellular cargo and also function as metabolic sensors and signalling platforms in the immunometabolic reprogramming of macrophages and other immune cells in atherosclerosis. Lysosomes can rapidly sense the presence of nutrients within immune cells, thereby switching from catabolism of extracellular material to the recycling of intracellular cargo. Such a fine-tuned degradative response supports the generation of metabolic building blocks through effectors such as mTORC1 or TFEB. By coupling nutrients to downstream signalling and metabolism, lysosomes serve as a crucial hub for cellular function in innate and adaptive immune cells. Lysosomal dysfunction is now recognized to be a hallmark of atherogenesis. Perturbations in nutrient-sensing and signalling have profound effects on the capacity of immune cells to handle cholesterol, perform phagocytosis and efferocytosis, and limit the activation of the inflammasome and other inflammatory pathways. Strategies to improve lysosomal function hold promise as novel modulators of the immunoinflammatory response associated with atherosclerosis. In this Review, we describe the crosstalk between lysosomal biology and immune cell function and polarization, with a particular focus on cellular immunometabolic reprogramming in the context of atherosclerosis.
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Affiliation(s)
- Fabrizia Bonacina
- Department of Excellence of Pharmacological and Biomolecular Sciences 'Rodolfo Paoletti', Università degli Studi di Milano, Milan, Italy
| | - Xiangyu Zhang
- Vascular Medicine Institute, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
- Pittsburgh VA Medical Center, Pittsburgh, PA, USA
| | - Nicolas Manel
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Laurent Yvan-Charvet
- Institut National de la Santé et de la Recherche Médicale (Inserm) U1065, Université Côte d'Azur, Centre Méditerranéen de Médecine Moléculaire (C3M), Fédération Hospitalo-Universitaire (FHU), Oncoage, Nice, France
| | - Babak Razani
- Vascular Medicine Institute, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
- Pittsburgh VA Medical Center, Pittsburgh, PA, USA
| | - Giuseppe D Norata
- Department of Excellence of Pharmacological and Biomolecular Sciences 'Rodolfo Paoletti', Università degli Studi di Milano, Milan, Italy.
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Nishida S, Matovelo SA, Kajimoto T, Nakamura SI, Okada T. Involvement of sphingosine 1-phosphate signaling in insulin-like growth factor-II/mannose 6-phosphate receptor trafficking from endosome to the trans-Golgi network. Commun Biol 2024; 7:1182. [PMID: 39300315 DOI: 10.1038/s42003-024-06828-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 09/03/2024] [Indexed: 09/22/2024] Open
Abstract
The insulin-like growth factor II/mannose 6-phosphate (IGF-II/M6P) receptor is a multifunctional glycoprotein not only play roles in IGF-II degradation and pro-TGFβ activation but binding to and transport M6P-bearing lysosomal enzymes from the trans-Golgi network (TGN) or the cell surface to lysosomes. At present, information regarding a retrograde transport of IGF-II/M6P receptor from endosomes to the TGN is still limited. We show here that a continuous ligand-dependent activation of sphingosine 1-phosphate receptor type 3 (S1P3R) on the endosomal membranes is required for subsequent recycling back of cargo-unloaded IGF-II/M6P receptors to the TGN. We have further clarified that Gq coupled with S1P3R plays a critical role in the activation of casein kinase 2, which phosphorylates and keeps PACS1 connector protein active for the association with IGF-II/M6P receptors, which enables transport carrier formation with the aid of other adaptor proteins toward the TGN. These findings shed light on the molecular mechanism underlying how continuous activation of the S1P receptor and subsequent downstream Gq signaling regulates the retrograde transport of the empty IGF-II/M6P receptors back to the TGN.
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Affiliation(s)
- Susumu Nishida
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shubi Ambwene Matovelo
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
- Department of Medical Biochemistry, School of Medicine and Dentistry, The University of Dodoma, Dodoma, Tanzania
| | - Taketoshi Kajimoto
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shun-Ichi Nakamura
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Taro Okada
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan.
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Losby M, Hayes M, Valfort A, Sopariwala DH, Sanders R, Walker JK, Xu W, Narkar VA, Zhang L, Billon C, Burris TP. The Estrogen Receptor-Related Orphan Receptors Regulate Autophagy through TFEB. Mol Pharmacol 2024; 106:164-172. [PMID: 39168657 DOI: 10.1124/molpharm.124.000889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 07/29/2024] [Accepted: 07/30/2024] [Indexed: 08/23/2024] Open
Abstract
Autophagy is an essential self-degradative and recycling mechanism that maintains cellular homeostasis. Estrogen receptor-related orphan receptors (ERRs) are fundamental in regulating cardiac metabolism and function. Previously, we showed that ERR agonists improve cardiac function in models of heart failure and induce autophagy. Here, we characterized a mechanism by which ERRs induce the autophagy pathway in cardiomyocytes. Transcription factor EB (TFEB) is a master regulator of the autophagy-lysosome pathway and has been shown to be crucial regulator of genes that control autophagy. We discovered that TFEB is a direct ERR target gene whose expression is induced by ERR agonists. Activation of ERR results in increased TFEB expression in both neonatal rat ventricular myocytes and C2C12 myoblasts. An ERR-dependent increase in TFEB expression results in increased expression of an array of TFEB target genes, which are critical for the stimulation of autophagy. Pharmacologically targeting ERR is a promising potential method for the treatment of many diseases where stimulation of autophagy may be therapeutic, including heart failure. SIGNIFICANCE STATEMENT: Estrogen receptor-related receptor agonists function as exercise mimetics and also display efficacy in animal models of metabolic disease, obesity, and heart failure.
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Affiliation(s)
- McKenna Losby
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - Matthew Hayes
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - Aurore Valfort
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - Danesh H Sopariwala
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - Ryan Sanders
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - John K Walker
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - Weiyi Xu
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - Vihang A Narkar
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - Lilei Zhang
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - Cyrielle Billon
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
| | - Thomas P Burris
- Division of Biology & Biomedical Sciences, Washington University School of Medicine, St. Louis (M.L.); Department of Pharmacodynamics, University of Florida College of Pharmacy, Gainesville, Florida (M.H., A.V., R.S., T.P.B.); University of Florida Genetics Institute, Gainesville, Florida (T.P.B.); Brown Foundation Institute of Molecular Medicine, McGovern Medical School, UTHealth, Houston, Texas, (D.H.S., V.A.N.); Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri (J.K.W.); Department of Molecular and Human Genetics, Baylor College of Medicine, Houston TX (W.X., L.Z.); and Center for Clinical Pharmacology, St Louis College of Pharmacy, University of Health Sciences and Pharmacy, St. Louis MO (C.B.)
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Cabana VC, Sénécal AM, Bouchard AY, Kourrich S, Cappadocia L, Lussier MP. AP-1 contributes to endosomal targeting of the ubiquitin ligase RNF13 via a secondary and novel non-canonical binding motif. J Cell Sci 2024; 137:jcs262035. [PMID: 39206621 DOI: 10.1242/jcs.262035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024] Open
Abstract
Cellular trafficking between organelles is typically assured by short motifs that contact carrier proteins to transport them to their destination. The ubiquitin E3 ligase RING finger protein 13 (RNF13), a regulator of proliferation, apoptosis and protein trafficking, localizes to endolysosomal compartments through the binding of a dileucine motif to clathrin adaptor protein complex AP-3. Mutations within this motif reduce the ability of RNF13 to interact with AP-3. Here, our study shows the discovery of a glutamine-based motif that resembles a tyrosine-based motif within the C-terminal region of RNF13 that binds to the clathrin adaptor protein complex AP-1, notably without a functional interaction with AP-3. Using biochemical, molecular and cellular approaches in HeLa cells, our study demonstrates that a RNF13 dileucine variant uses an AP-1-dependent pathway to be exported from the Golgi towards the endosomal compartment. Overall, this study provides mechanistic insights into the alternate route used by this variant of the dileucine sorting motif of RNF13.
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Affiliation(s)
- Valérie C Cabana
- Département de Chimie, Université du Québec à Montréal, 2101, rue Jeanne-Mance, Montréal, QC H2X 2J6, Canada
- Centre d'Excellence en Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Université du Québec à Montréal, Montréal, QC H2X 3Y7, Canada
- Regroupement québécois de recherche sur la fonction, l'ingénierie et les applications des protéines (PROTEO), Montréal, QC H3C 3P8, Canada
| | - Audrey M Sénécal
- Département de Chimie, Université du Québec à Montréal, 2101, rue Jeanne-Mance, Montréal, QC H2X 2J6, Canada
- Centre d'Excellence en Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Université du Québec à Montréal, Montréal, QC H2X 3Y7, Canada
- Regroupement québécois de recherche sur la fonction, l'ingénierie et les applications des protéines (PROTEO), Montréal, QC H3C 3P8, Canada
| | - Antoine Y Bouchard
- Département de Chimie, Université du Québec à Montréal, 2101, rue Jeanne-Mance, Montréal, QC H2X 2J6, Canada
- Centre d'Excellence en Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Université du Québec à Montréal, Montréal, QC H2X 3Y7, Canada
- Regroupement québécois de recherche sur la fonction, l'ingénierie et les applications des protéines (PROTEO), Montréal, QC H3C 3P8, Canada
| | - Saïd Kourrich
- Centre d'Excellence en Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Université du Québec à Montréal, Montréal, QC H2X 3Y7, Canada
- Département des Sciences Biologiques, Université du Québec à Montréal, 141 avenue du Président-Kennedy, Montréal, QC H2X 3X8, Canada
- Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC H4B 1R6, Canada
| | - Laurent Cappadocia
- Département de Chimie, Université du Québec à Montréal, 2101, rue Jeanne-Mance, Montréal, QC H2X 2J6, Canada
- Centre d'Excellence en Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Université du Québec à Montréal, Montréal, QC H2X 3Y7, Canada
- Regroupement québécois de recherche sur la fonction, l'ingénierie et les applications des protéines (PROTEO), Montréal, QC H3C 3P8, Canada
| | - Marc P Lussier
- Département de Chimie, Université du Québec à Montréal, 2101, rue Jeanne-Mance, Montréal, QC H2X 2J6, Canada
- Centre d'Excellence en Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Université du Québec à Montréal, Montréal, QC H2X 3Y7, Canada
- Regroupement québécois de recherche sur la fonction, l'ingénierie et les applications des protéines (PROTEO), Montréal, QC H3C 3P8, Canada
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7
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Liu Y, Liu Q, Shang H, Li J, Chai H, Wang K, Guo Z, Luo T, Liu S, Liu Y, Wang X, Zhang H, Wu C, Song SJ, Yang J. Potential application of natural compounds in ischaemic stroke: Focusing on the mechanisms underlying "lysosomocentric" dysfunction of the autophagy-lysosomal pathway. Pharmacol Ther 2024; 263:108721. [PMID: 39284368 DOI: 10.1016/j.pharmthera.2024.108721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 07/06/2024] [Accepted: 09/10/2024] [Indexed: 09/22/2024]
Abstract
Ischaemic stroke (IS) is the second leading cause of death and a major cause of disability worldwide. Currently, the clinical management of IS still depends on restoring blood flow via pharmacological thrombolysis or mechanical thrombectomy, with accompanying disadvantages of narrow therapeutic time window and risk of haemorrhagic transformation. Thus, novel pathophysiological mechanisms and targeted therapeutic candidates are urgently needed. The autophagy-lysosomal pathway (ALP), as a dynamic cellular lysosome-based degradative process, has been comprehensively studied in recent decades, including its upstream regulatory mechanisms and its role in mediating neuronal fate after IS. Importantly, increasing evidence has shown that IS can lead to lysosomal dysfunction, such as lysosomal membrane permeabilization, impaired lysosomal acidity, lysosomal storage disorder, and dysfunctional lysosomal ion homeostasis, which are involved in the IS-mediated defects in ALP function. There is tightly regulated crosstalk between transcription factor EB (TFEB), mammalian target of rapamycin (mTOR) and lysosomal function, but their relationship remains to be systematically summarized. Notably, a growing body of evidence emphasizes the benefits of naturally derived compounds in the treatment of IS via modulation of ALP function. However, little is known about the roles of natural compounds as modulators of lysosomes in the treatment of IS. Therefore, in this context, we provide an overview of the current understanding of the mechanisms underlying IS-mediated ALP dysfunction, from a lysosomal perspective. We also provide an update on the effect of natural compounds on IS, according to their chemical structural types, in different experimental stroke models, cerebral regions and cell types, with a primary focus on lysosomes and autophagy initiation. This review aims to highlight the therapeutic potential of natural compounds that target lysosomal and ALP function for IS treatment.
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Affiliation(s)
- Yueyang Liu
- Key Laboratory of Efficacy Evaluation of New Drug Candidate, Liaoning Province; Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Qingbo Liu
- Key Laboratory of Computational Chemistry Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Hanxiao Shang
- Key Laboratory of Efficacy Evaluation of New Drug Candidate, Liaoning Province; Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Jichong Li
- Key Laboratory of Computational Chemistry Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - He Chai
- Key Laboratory of Efficacy Evaluation of New Drug Candidate, Liaoning Province; Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Kaixuan Wang
- Key Laboratory of Computational Chemistry Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Zhenkun Guo
- Key Laboratory of Efficacy Evaluation of New Drug Candidate, Liaoning Province; Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Tianyu Luo
- Key Laboratory of Computational Chemistry Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Shiqi Liu
- Key Laboratory of Efficacy Evaluation of New Drug Candidate, Liaoning Province; Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Yan Liu
- Key Laboratory of Computational Chemistry Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Xuemei Wang
- Key Laboratory of Efficacy Evaluation of New Drug Candidate, Liaoning Province; Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Hangyi Zhang
- Key Laboratory of Computational Chemistry Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Chunfu Wu
- Key Laboratory of Efficacy Evaluation of New Drug Candidate, Liaoning Province; Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China.
| | - Jingyu Yang
- Key Laboratory of Efficacy Evaluation of New Drug Candidate, Liaoning Province; Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China.
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8
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Yin J, Ding L, Yao S, Huang J, Xiao Y, Wang Y, Zhang B, Rehmutulla M, Gu L, Tong Q, Zhang Y. Y9, a Gboxin analog, displays anti-tumor effect in non-small cell lung cancer by inducing lysosomal dysfunction and apoptosis. Bioorg Chem 2024; 153:107820. [PMID: 39321714 DOI: 10.1016/j.bioorg.2024.107820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 09/09/2024] [Accepted: 09/10/2024] [Indexed: 09/27/2024]
Abstract
Non-small cell lung cancer (NSCLC) ranks among the most prevalent malignancies globally. Gboxin, a novel inhibitor of mitochondrial complex V that exerts unique anti-tumor effects via oxidative phosphorylation inhibition, but shows no efficacy against NSCLC in vivo. Through chemical structure optimization, we designed and synthesized Gboxin analog Y9, which demonstrates significantly enhanced potency over its predecessor. Specifically, Y9 inhibited NSCLC significantly more strongly than Gboxin and possessed the ability to inhibit cell cycle progression and induce oxidative stress similar to Gboxin. Further investigation revealed that unlike Gboxin, Y9 selectively acidifies lysosomes and induces lysosomal dysfunction. This leads to hyperactive autophagy with impaired substrate clearance, and ultimately resulting in apoptosis. Animal studies confirmed the efficacy of Y9 in suppressing tumor growth in a xenograft mouse model. Collectively, Y9 is a distinctive Gboxin analog that outperforms its prototype by inducing lysosomal dysfunction and apoptosis, and has the potential to be developed as a novel anti-NSCLC lead compound.
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Affiliation(s)
- Jie Yin
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Longjie Ding
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Si Yao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jianzheng Huang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yang Xiao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yue Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Biqiong Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Mewlude Rehmutulla
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lianghu Gu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Qingyi Tong
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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9
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Ter Ü, Ertürk Gürkan S, Gürkan M, Kunili IE, Aksoy E. Pathological and oxidative stress responses of Mytilus galloprovincialis to Vibrio mediterranei infection: An in vivo challenge. FISH & SHELLFISH IMMUNOLOGY 2024; 154:109889. [PMID: 39250984 DOI: 10.1016/j.fsi.2024.109889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 09/03/2024] [Accepted: 09/06/2024] [Indexed: 09/11/2024]
Abstract
Since the identification of Vibrio mediterranei as a causative agent in mass mortalities of pen shells across the Mediterranean, elucidating its pathogenicity, virulence, and interactions with other bivalves has gained importance. While the cellular and immune responses of bivalves to various Vibrio species have been extensively studied, the infectious characteristics of this Vibrio species, particularly in the context of pen shell outbreaks, remain unclear for other bivalves. Therefore, to evaluate its pathogenicity, we investigated the histological and oxidative effects on the Mediterranean mussel (Mytilus galloprovincialis), a key species in aquaculture. Two distinct infection setups were established: one involving the inoculation of seawater with the bacterial isolate and another involving direct injection of the bacteria into the mussels. After a 24-h exposure period, histological evaluations were conducted on the mantle, gill, and digestive gland tissues of the mussels. Additionally, measurements of superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST), and lipid peroxidation levels were performed in the gill and digestive gland tissues. Oxidative responses were significantly elevated in both infection setups compared to the control group, with the directly injected samples exhibiting the highest oxidative responses (p < 0.05). Histological findings indicated that tissue-specific responses to host-pathogen interactions were consistent under both infection conditions. Notable observations included intense hemocytic infiltration in tissues, epithelial hyperplasia, and vacuolization in the gills, as well as focal necrotic areas in the digestive gland. The findings of this study indicate that V. mediterranei, a relatively novel pathogen, can provoke significant acute immune responses and tissue-level reactions in M. galloprovincialis, a species that is both widely distributed and vital to the food chain. These insights into the potential susceptibility of mussels underscore the need for further comprehensive research and inform the development of effective management strategies.
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Affiliation(s)
- Ümmügülsüm Ter
- Çanakkale Onsekiz Mart University, Faculty of Science, Department of Biology, Çanakkale, Turkey
| | - Selin Ertürk Gürkan
- Çanakkale Onsekiz Mart University, Faculty of Science, Department of Biology, Çanakkale, Turkey.
| | - Mert Gürkan
- Çanakkale Onsekiz Mart University, Faculty of Science, Department of Biology, Çanakkale, Turkey
| | - Ibrahim Ender Kunili
- Çanakkale Onsekiz Mart University, Faculty of Marine Science and Technology, Department of Fishing and Processing Technology, Çanakkale, Turkey
| | - Emircan Aksoy
- Çanakkale Onsekiz Mart University, Faculty of Science, Department of Biology, Çanakkale, Turkey
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10
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Wang Y, Yang Y, Cai Y, Aobulikasimu A, Wang Y, Hu C, Miao Z, Shao Y, Zhao M, Hu Y, Xu C, Chen X, Li Z, Chen J, Wang L, Chen S. Endo-Lysosomal Network Disorder Reprograms Energy Metabolism in SorL1-Null Rat Hippocampus. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2407709. [PMID: 39225620 DOI: 10.1002/advs.202407709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Indexed: 09/04/2024]
Abstract
Sortilin-related receptor 1 (SorL1) deficiency is a genetic predisposition to familial Alzheimer's disease (AD), but its pathology is poorly understood. In SorL1-null rats, a disorder of the global endosome-lysosome network (ELN) is found in hippocampal neurons. Deletion of amyloid precursor protein (APP) in SorL1-null rats could not completely rescue the neuronal abnormalities in the ELN of the hippocampus and the impairment of spatial memory in SorL1-null young rats. These in vivo observations indicated that APP is one of the cargoes of SorL1 in the regulation of the ELN, which affects hippocampal-dependent memory. When SorL1 is depleted, the endolysosome takes up more of the lysosome flux and damages lysosomal digestion, leading to pathological lysosomal storage and disturbance of cholesterol and iron homeostasis in the hippocampus. These disturbances disrupt the original homeostasis of the material-energy-subcellular structure and reprogram energy metabolism based on fatty acids in the SorL1-null hippocampus, instead of glucose. Although fatty acid oxidation increases ATP supply, it cannot reduce the levels of the harmful byproduct ROS during oxidative phosphorylation, as it does in glucose catabolism. Therefore, the SorL1-null rats exhibit hippocampal degeneration, and their spatial memory is impaired. Our research sheds light on the pathology of SorL1 deficiency in AD.
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Affiliation(s)
- Yajie Wang
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Yuting Yang
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Ying Cai
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Ayikaimaier Aobulikasimu
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Yuexin Wang
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Chuanwei Hu
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Zhikang Miao
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Yue Shao
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Mengna Zhao
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Yue Hu
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Chang Xu
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Xinjun Chen
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Zhiqiang Li
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Brain Center, Department of Neurosurgery, Ministry of Education Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, TaiKang Center for Life and Medical Sciences, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Jincao Chen
- Brain Center, Department of Neurosurgery, Ministry of Education Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, TaiKang Center for Life and Medical Sciences, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Lianrong Wang
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Respiratory Diseases, Institute of Pediatrics, Shenzhen Children's Hospital, Shenzhen, 518026, China
| | - Shi Chen
- Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Burn and Plastic Surgery, Shenzhen Key Laboratory of Microbiology in Genomic Modification & Editing and Application, Shenzhen Institute of Translational Medicine, Medical Innovation Technology Transformation Center, Shenzhen University Medical School, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518035, China
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11
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He H, Cao X, He F, Zhang W, Wang X, Peng P, Xie C, Yin F, Li D, Li J, Wang M, Klüssendorf M, Jentsch TJ, Stauber T, Peng J. Mutations in CLCN6 as a Novel Genetic Cause of Neuronal Ceroid Lipofuscinosis in a Murine Model. Ann Neurol 2024; 96:608-624. [PMID: 38877824 DOI: 10.1002/ana.27002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 04/30/2024] [Accepted: 05/08/2024] [Indexed: 06/16/2024]
Abstract
OBJECTIVE The aim of this study was to explore the pathogenesis of CLCN6-related disease and to assess whether its Cl-/H+-exchange activity is crucial for the biological role of ClC-6. METHODS We performed whole-exome sequencing on a girl with development delay, intractable epilepsy, behavioral abnormities, retinal dysfunction, progressive brain atrophy, suggestive of neuronal ceroid lipofuscinoses (NCLs). We generated and analyzed the first knock-in mouse model of a patient variant (p.E200A) and compared it with a Clcn6-/- mouse model. Additional functional tests were performed with heterologous expression of mutant ClC-6. RESULTS We identified a de novo heterozygous p.E200A variant in the proband. Expression of disease-causing ClC-6E200A or ClC-6Y553C mutants blocked autophagic flux and activated transcription factors EB (TFEB) and E3 (TFE3), leading to autophagic vesicle and cholesterol accumulation. Such alterations were absent with a transport-deficient ClC-6E267A mutant. Clcn6E200A/+ mice developed severe neurodegeneration with typical features of NCLs. Mutant ClC-6E200A, but not loss of ClC-6 in Clcn6-/- mice, increased lysosomal biogenesis by suppressing mTORC1-TFEB signaling, blocked autophagic flux through impairing lysosomal function, and increased apoptosis. Carbohydrate and lipid deposits accumulated in Clcn6E200A/+ brain, while only lipid storage was found in Clcn6-/- brain. Lysosome dysfunction, autophagy defects, and gliosis were early pathogenic events preceding neuron loss. INTERPRETATION CLCN6 is a novel genetic cause of NCLs, highlighting the importance of considering CLCN6 mutations in the diagnostic workup for molecularly undefined forms of NCLs. Uncoupling of Cl- transport from H+ countertransport in the E200A mutant has a dominant effect on the autophagic/lysosomal pathway. ANN NEUROL 2024;96:608-624.
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Affiliation(s)
- Hailan He
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Children Neurodevelopmental Disabilities of Hunan Province, Changsha, China
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Xiaoshuang Cao
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Children Neurodevelopmental Disabilities of Hunan Province, Changsha, China
| | - Fang He
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Children Neurodevelopmental Disabilities of Hunan Province, Changsha, China
| | - Wen Zhang
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Children Neurodevelopmental Disabilities of Hunan Province, Changsha, China
| | - Xiaole Wang
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Children Neurodevelopmental Disabilities of Hunan Province, Changsha, China
| | - Pan Peng
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Children Neurodevelopmental Disabilities of Hunan Province, Changsha, China
| | - Changning Xie
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Children Neurodevelopmental Disabilities of Hunan Province, Changsha, China
| | - Fei Yin
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Children Neurodevelopmental Disabilities of Hunan Province, Changsha, China
| | - Dengfeng Li
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, China
| | - Jiada Li
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, China
| | - Minghui Wang
- The First People's Hospital of Changde, Changde, China
| | - Malte Klüssendorf
- Institute for Molecular Medicine, MSH Medical School Hamburg, Hamburg, Germany
| | - Thomas J Jentsch
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) and Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany
- NeuroCure Cluster of Excellence, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Tobias Stauber
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
- Institute for Molecular Medicine, MSH Medical School Hamburg, Hamburg, Germany
| | - Jing Peng
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Children Neurodevelopmental Disabilities of Hunan Province, Changsha, China
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12
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Hinz K, Niu M, Ni HM, Ding WX. Targeting Autophagy for Acetaminophen-Induced Liver Injury: An Update. LIVERS 2024; 4:377-387. [PMID: 39301093 PMCID: PMC11412313 DOI: 10.3390/livers4030027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/22/2024] Open
Abstract
Acetaminophen (APAP) overdose can induce hepatocyte necrosis and acute liver failure in experimental rodents and humans. APAP is mainly metabolized via hepatic cytochrome P450 enzymes to generate the highly reactive metabolite N-acetyl-p-benzoquinone imine (NAPQI), which forms acetaminophen protein adducts (APAP-adducts) and damages mitochondria, triggering necrosis. APAP-adducts and damaged mitochondria can be selectively removed by autophagy. Increasing evidence implies that the activation of autophagy may be beneficial for APAP-induced liver injury (AILI). In this minireview, we briefly summarize recent progress on autophagy, in particular, the pharmacological targeting of SQSTM1/p62 and TFEB in AILI.
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Affiliation(s)
- Kaitlyn Hinz
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Mengwei Niu
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Hong-Min Ni
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA
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13
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Tan Y, Huang X, Xu C, Huang Y, Li S, Yin Z. Integrating Genomics and Transcriptomics to Identify Candidate Genes for Egg Production in Taihe Black-Bone Silky Fowls ( Gallus gallus domesticus Brisson). Int J Mol Sci 2024; 25:9373. [PMID: 39273321 PMCID: PMC11395579 DOI: 10.3390/ijms25179373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 08/27/2024] [Accepted: 08/27/2024] [Indexed: 09/15/2024] Open
Abstract
The Taihe Black-Bone Silky Fowl (Gallus gallus domesticus Brisson) possesses significant value in terms of consumption, medicinal applications, and ornamental appeal, representing a precious genetic resource and traditional Chinese medicinal material. However, considerable variation exists within populations regarding egg-laying performance. This study integrates a whole-genome selection signal analysis (SSA) with a transcriptome analysis to identify genes associated with egg-laying traits in Taihe Black-Bone Silky Fowls. We identified 31 candidate genes under selection from the high-yield chicken (HC) and low-yield chicken (LC) groups. Additionally, through RNA-seq analysis, 257 common differentially expressed genes (DEGs) were identified from four comparative groups. Two overlapping genes-LPL and SETBP1-were found in both the selected gene and DEG lists. These selected genes and DEGs were enriched in pathways related to ovarian development, including the lysosome pathway, the ECM-receptor interaction pathway, the TGF-beta signaling pathway, the Wnt signaling pathway, the PPAR signaling pathway, and the glycerolipid metabolism pathway. These research findings contribute to the breeding of Taihe Black-Bone Silky Fowls with high egg production traits and provide a theoretical foundation for exploring the regulatory mechanisms of avian reproduction.
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Affiliation(s)
- Yuting Tan
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Xuan Huang
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Chunhui Xu
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Yunyan Huang
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Shibao Li
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Zhaozheng Yin
- College of Animal Science, Zhejiang University, Hangzhou 310058, China
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14
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Duan Y, Huang P, Sun L, Wang P, Cai Y, Shi T, Li Y, Zhou Y, Yu S. Dehydroandrographolide ameliorates doxorubicin-mediated cardiotoxicity by regulating autophagy through the mTOR-TFEB pathway. Chem Biol Interact 2024; 399:111132. [PMID: 38964637 DOI: 10.1016/j.cbi.2024.111132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/02/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
The clinical application of doxorubicin (DOX) was limited by the serious cardiotoxicity. The traditional Chinese medicine Andrographis paniculata and its principal active component (Dehydroandrographolide, DA) have been well known for their diverse cardiovascular protective effects. However, the effects of DA on DOX-induced cardiotoxicity (DIC) were still unknown. In this study, we evaluated the effects and revealed the potential mechanisms of DA on DIC both in vivo and in vitro. The effects of DA on DIC were systematically assessed by echocardiography and histological assays. Western blot and flow cytometry were used to measure apoptosis of cardiomyocytes. Transmission electron microscopy and StubRFP-SensGFP-LC3 lentivirus were further used to assay autophagic flux. Our results showed that DA administration significantly improved cardiac function and attenuated DOX-induced cardiomyocyte apoptosis. Mechanically, DA restored autophagic flux and lysosome functions via inhibiting DOX-induced mTOR signal pathway activation and increasing the translocation of TFEB to the nucleus. However, activation of mTOR or knockdown of TFEB significantly inhibited the protective effects of DA against DIC by impacting lysosomal functions and autophagic flux. In conclusion, our results revealed that DA might be a potential cardioprotective agent against DIC.
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Affiliation(s)
- Yongzhen Duan
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510280, China.
| | - Peixian Huang
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510280, China; Department of Pharmacy, Qingyuan People's Hospital, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, Guangdong, 511518, China.
| | - Lu Sun
- Department of Pediatric Cardiology, Heart Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, 510623, China.
| | - Panxia Wang
- Guangzhou Medical University, School of Pharmaceutical Sciences, Guangzhou, China.
| | - Yi Cai
- Guangzhou Medical University, School of Pharmaceutical Sciences, Guangzhou, China.
| | - Tingting Shi
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510280, China.
| | - Yuliang Li
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510280, China.
| | - Yuhua Zhou
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510280, China.
| | - Shanshan Yu
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510280, China.
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15
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Papini N, Giussani P, Tringali C. Metformin Lysosomal Targeting: A Novel Aspect to Be Investigated for Metformin Repurposing in Neurodegenerative Diseases? Int J Mol Sci 2024; 25:8884. [PMID: 39201569 PMCID: PMC11354325 DOI: 10.3390/ijms25168884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 08/06/2024] [Accepted: 08/12/2024] [Indexed: 09/02/2024] Open
Abstract
Metformin is a widely employed drug in type 2 diabetes. In addition to warranting good short- and long-term glycemic control, metformin displays many intriguing properties as protection against cardiovascular and neurodegenerative diseases, anti-tumorigenic and longevity promotion. In addition to being a low-cost drug, metformin is generally well tolerated. However, despite the enthusiastic drive to aliment these novel studies, many contradictory results suggest the importance of better elucidating the complexity of metformin action in different tissues/cells to establish its possible employment in neurodegenerative diseases. This review summarises recent data identifying lysosomal-dependent processes and lysosomal targets, such as endosomal Na+/H+ exchangers, presenilin enhancer 2 (PEN2), the lysosomal pathway leading to AMP-activated protein kinase (AMPK) activation, and the transcription factor EB (TFEB), modulated by metformin. Lysosomal dysfunctions resulting in autophagic and lysosomal acidification and biogenesis impairment appear to be hallmarks of many inherited and acquired neurodegenerative diseases. Lysosomes are not yet seen as a sort of cellular dump but are crucial in determining key signalling paths and processes involved in the clearance of aggregated proteins. Thus, the possibility of pharmacologically modulating them deserves great interest. Despite the potentiality of metformin in this context, many additional important issues, such as dosing, should be addressed in the future.
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Affiliation(s)
| | | | - Cristina Tringali
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, LITA Segrate, 20054 Segrate, MI, Italy; (N.P.); (P.G.)
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16
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Li B, Bian C, Yang L, Zhu Y, Li Z, Yu M. Unveiling Cellular Microenvironments with a Near-Infrared Fluorescent Sensor: A Dual-Edge Tool for Cancer Detection and Drug Screening. Anal Chem 2024. [PMID: 39148361 DOI: 10.1021/acs.analchem.4c03155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Mitochondria and lysosomes are pivotal intracellular organelles, and the injury or dysfunction of these organelles can trigger a range of pathological processes. Early diagnosis and treatment of cancer are of paramount importance due to cancer's status as a leading health threat. This study introduces a novel fluorescent probe, BDHV, for detecting mitochondrial and lysosomal viscosity and pH abnormalities in tumors, facilitating early cancer detection and screening of anticancer drugs. Under acidic conditions, the red fluorescence of the probe gradually increases with increasing viscosity. Conversely, in alkaline environments, an increase in viscosity leads to a decrease in green fluorescence and an increase in red fluorescence. The inclusion of a benzothiazole group endows BDHV with strong dual-targeting capability for mitochondria and lysosomes and without being affected by the mitochondrial membrane potential. Most notably, BDHV has potential applications for early cancer diagnosis and in effectively assessing the efficacy of various anticancer drugs.
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Affiliation(s)
- Bin Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Chenchen Bian
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Lei Yang
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Yanxi Zhu
- Linyi Key Laboratory of Nano Medicine, Linyi People's Hospital, Linyi 276000, China
| | - Zhanxian Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Mingming Yu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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17
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Chen X, Cai L, Fan W, Yang Q, Mao X, Yao L. Causal relationships between rheumatoid arthritis and neurodegenerative diseases: a two-sample univariable and multivariable Mendelian randomization study. Front Med (Lausanne) 2024; 11:1439344. [PMID: 39193017 PMCID: PMC11347450 DOI: 10.3389/fmed.2024.1439344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 07/22/2024] [Indexed: 08/29/2024] Open
Abstract
Background Observational research has highlighted a potential relationship between rheumatoid arthritis (RA) and neurodegenerative diseases (NDs). However, the confirmation of a causal connection is impeded by the inherent limitations of such studies, including vulnerability to confounding factors and the possibility of reverse causality. This study employs a two-sample Mendelian randomization (MR) approach to assess the causal impact of RA on three NDs, including Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS). Methods We aggregated data from genome-wide association studies (GWASs) targeting RA or NDs within populations of European descent. Single nucleotide polymorphisms (SNPs) with robust associations to RA were identified as instrumental variables (IVs). To estimate the association between RA and AD, PD, and ALS, we utilized the inverse variance weighted (IVW) method in our univariable MR (UVMR) analysis. Validation of the IVW results ensued through supplementary analyses using MR-Egger and weighted median methods. The multivariable MR (MVMR) analysis was conducted, adjusting for body mass index (BMI), alcohol drinking, and type 2 diabetes mellitus (T2DM). Results The UVMR analysis, based on the IVW method, revealed a significantly positive causal association between RA and late-onset (LO) AD (OR [95% CI] = 1.084 [1.020-1.153]; p = 9.980 × 10-3), while suggesting a possible inverse relationship with PD (OR [95% CI] = 0.727 [0.563-0.938]; p = 0.014). Our study did not detect any causal connections between RA and early-onset (EO) AD, atypical or mixed (AM) AD, and ALS (all p > 0.05). The MVMR analysis results indicated that after adjusting for alcohol drinking, RA remains a risk factor for LOAD (OR [95% CI] = 1.094 [1.024-1.169]; p = 0.008). However, MVMR analysis revealed no causal connections between RA and PD after adjustments for BMI, alcohol drinking, or T2DM (all p > 0.05). Sensitivity analyses showed no evidence of heterogeneity and horizontal pleiotropy. Conclusions This research provides genetic evidence indicating that RA potentially causes an increased risk of developing LOAD and PD. Such a revelation underscores the importance for individuals suffering from RA to be vigilant about the potential emergence of LOAD and PD. Ongoing monitoring and prompt detection are essential for successfully managing and intervening in this possible risk.
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Affiliation(s)
- Xingyu Chen
- Department of Neurology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Li Cai
- Department of Neurology, The Third Hospital of Changsha, Changsha, China
| | - Weibing Fan
- Department of Neurology, The Third Hospital of Changsha, Changsha, China
| | - Qian Yang
- Department of Neurology, The Third Hospital of Changsha, Changsha, China
| | - Xinfa Mao
- Department of Neurology, The Third Hospital of Changsha, Changsha, China
| | - Liping Yao
- Department of Neurology, The Third Hospital of Changsha, Changsha, China
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18
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Jiang J, Ren R, Fang W, Miao J, Wen Z, Wang X, Xu J, Jin H. Lysosomal biogenesis and function in osteoclasts: a comprehensive review. Front Cell Dev Biol 2024; 12:1431566. [PMID: 39170917 PMCID: PMC11335558 DOI: 10.3389/fcell.2024.1431566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Accepted: 07/19/2024] [Indexed: 08/23/2024] Open
Abstract
Lysosomes serve as catabolic centers and signaling hubs in cells, regulating a multitude of cellular processes such as intracellular environment homeostasis, macromolecule degradation, intracellular vesicle trafficking and autophagy. Alterations in lysosomal level and function are crucial for cellular adaptation to external stimuli, with lysosome dysfunction being implicated in the pathogenesis of numerous diseases. Osteoclasts (OCs), as multinucleated cells responsible for bone resorption and maintaining bone homeostasis, have a complex relationship with lysosomes that is not fully understood. Dysregulated function of OCs can disrupt bone homeostasis leading to the development of various bone disorders. The regulation of OC differentiation and bone resorption for the treatment of bone disease have received considerable attention in recent years, yet the role and regulation of lysosomes in OCs, as well as the potential therapeutic implications of intervening in lysosomal biologic behavior for the treatment of bone diseases, remain relatively understudied. This review aims to elucidate the mechanisms involved in lysosomal biogenesis and to discuss the functions of lysosomes in OCs, specifically in relation to differentiation, bone resorption, and autophagy. Finally, we explore the potential therapeutic implication of targeting lysosomes in the treatment of bone metabolic disorders.
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Affiliation(s)
- Junchen Jiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Rufeng Ren
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Weiyuan Fang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jiansen Miao
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Zijun Wen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Xiangyang Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jiake Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Haiming Jin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
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19
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Niu Y, Wei H, Zhang Y, Su J. Transcriptome response of a marine copepod in response to environmentally-relevant concentrations of saxitoxin. MARINE POLLUTION BULLETIN 2024; 205:116546. [PMID: 38870575 DOI: 10.1016/j.marpolbul.2024.116546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 04/05/2024] [Accepted: 05/30/2024] [Indexed: 06/15/2024]
Abstract
Paralytic shellfish toxins (PSTs) can pose a serious threat to human health. Among them, saxitoxin (STX) is one of the most potent natural neurotoxins. Here, the copepod Tigriopus japonicus, was exposed to environmentally relevant concentrations (2.5 and 25 μg/L) STX for 48 h. Although no lethal effects were observed at both concentrations, the transcriptome was significantly altered, and displayed a concentration-dependent response. STX exposure decreased the copepod's metabolism and compromised immune defense and detoxification. Additionally, STX disturbed signal transduction, which might affect other cellular processes. STX exposure could inhibit the copepod's chitin metabolism, disrupting its molting process. Also, the processes related to damage repair and protection were up-regulated to fight against high concentration exposure. Collectively, this study has provided an early warning of PSTs for coastal ecosystem not only because of their potent toxicity effect but also their bioaccumulation that can transfer up the food chain after ingestion by copepods.
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Affiliation(s)
- Yaolu Niu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems/College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Hui Wei
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems/College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Yunlei Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems/College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Jie Su
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, National Research and Development Center for Marine Fish Processing, Xiamen 361013, China.
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20
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Bolsinger MM, Drobny A, Wilfling S, Reischl S, Krach F, Moritz R, Balta D, Hehr U, Sock E, Bleibaum F, Hanses F, Winner B, Huarcaya SP, Arnold P, Zunke F. SARS-CoV-2 Spike Protein Induces Time-Dependent CTSL Upregulation in HeLa Cells and Alveolarspheres. J Cell Biochem 2024:e30627. [PMID: 38971996 DOI: 10.1002/jcb.30627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/11/2024] [Accepted: 06/20/2024] [Indexed: 07/08/2024]
Abstract
Autophagy and lysosomal pathways are involved in the cell entry of SARS-CoV-2 virus. To infect the host cell, the spike protein of SARS-CoV-2 binds to the cell surface receptor angiotensin-converting enzyme 2 (ACE2). To allow the fusion of the viral envelope with the host cell membrane, the spike protein has to be cleaved. One possible mechanism is the endocytosis of the SARS-CoV-2-ACE2 complex and subsequent cleavage of the spike protein, mainly by the lysosomal protease cathepsin L. However, detailed molecular and dynamic insights into the role of cathepsin L in viral cell entry remain elusive. To address this, HeLa cells and iPSC-derived alveolarspheres were treated with recombinant SARS-CoV-2 spike protein, and the changes in mRNA and protein levels of cathepsins L, B, and D were monitored. Additionally, we studied the effect of cathepsin L deficiency on spike protein internalization and investigated the influence of the spike protein on cathepsin L promoters in vitro. Furthermore, we analyzed variants in the genes coding for cathepsin L, B, D, and ACE2 possibly associated with disease progression using data from Regeneron's COVID Results Browser and our own cohort of 173 patients with COVID-19, exhibiting a variant of ACE2 showing significant association with COVID-19 disease progression. Our in vitro studies revealed a significant increase in cathepsin L mRNA and protein levels following exposure to the SARS-CoV-2 spike protein in HeLa cells, accompanied by elevated mRNA levels of cathepsin B and D in alveolarspheres. Moreover, an increase in cathepsin L promoter activity was detected in vitro upon spike protein treatment. Notably, the knockout of cathepsin L resulted in reduced internalization of the spike protein. The study highlights the importance of cathepsin L and lysosomal proteases in the SARS-CoV-2 spike protein internalization and suggests the potential of lysosomal proteases as possible therapeutic targets against COVID-19 and other viral infections.
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Affiliation(s)
- Magdalena M Bolsinger
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Alice Drobny
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | | | - Stephanie Reischl
- Department of Stem Cell Biology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Florian Krach
- Department of Stem Cell Biology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Raul Moritz
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Denise Balta
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ute Hehr
- Center for Human Genetics Regensburg, Regensburg, Germany
| | - Elisabeth Sock
- Institut für Biochemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Florian Bleibaum
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Frank Hanses
- Emergency Department, University Hospital Regensburg, Regensburg, Germany
- Department for Infection Control and Infectious Diseases, University Hospital Regensburg, Regensburg, Germany
| | - Beate Winner
- Department of Stem Cell Biology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Susy Prieto Huarcaya
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Philipp Arnold
- Institute of Anatomy, Functional and Clinical Anatomy, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Friederike Zunke
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
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21
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Lee S, Ju IG, Eo H, Kim JH, Choi Y, Oh MS. Rhei Undulati Rhizoma attenuates memory decline and reduces amyloid-β induced neuritic dystrophy in 5xFAD mouse. Chin Med 2024; 19:95. [PMID: 38965625 PMCID: PMC11223309 DOI: 10.1186/s13020-024-00966-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 06/22/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is a common type of dementia characterized by amyloid-β (Aβ) accumulation, lysosomal dysfunction, and tau hyperphosphorylation, leading to neurite dystrophy and memory loss. This study aimed to investigate whether Rhei Undulati Rhizoma (RUR), which has been reported to have anti-neuroinflammatory effect, attenuates Aβ-induced memory impairment, neuritic dystrophy, and tau hyperphosphorylation, and to reveal its mode of action. METHODS Five-month-old 5xFAD mice received RUR (50 mg/kg) orally for 2 months. The Y-maze test was used to assess working memory. After behavioral testing, brain tissue was analyzed using thioflavin S staining, western blotting, and immunofluorescence staining to investigate the mode of action of RUR. To confirm whether RUR directly reduces Aβ aggregation, a thioflavin T assay and dot blot were performed after incubating Aβ with RUR. RESULTS RUR administration attenuated the Aβ-induced memory impairment in 5xFAD mice. Furthermore, decreased accumulation of Aβ was observed in the hippocampus of the RUR-treated 5xFAD group compare to the vehicle-treated 5xFAD group. Moreover, RUR reduced the dystrophic neurites (DNs) that accumulate impaired endolysosomal organelles around Aβ. In particular, RUR treatment downregulated the expression of β-site amyloid precursor protein cleaving enzyme 1 and the hyperphosphorylation of tau within DNs. Additionally, RUR directly suppressed the aggregation of Aβ, and eliminated Aβ oligomers in vitro. CONCLUSIONS This study showed that RUR could attenuate Aβ-induced pathology and directly regulate the aggregation of Aβ. These results suggest that RUR could be an efficient material for AD treatment through Aβ regulation.
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Affiliation(s)
- Seungmin Lee
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - In Gyoung Ju
- Department of Oriental Pharmaceutical Science and Kyung Hee East-West Pharmaceutical Research Institute, College of Pharmacy, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Hyeyoon Eo
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Jin Hee Kim
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Yujin Choi
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Myung Sook Oh
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea.
- Department of Oriental Pharmaceutical Science and Kyung Hee East-West Pharmaceutical Research Institute, College of Pharmacy, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea.
- Department of Integrated Drug Development and Natural Products, Graduate School, Kyung Hee University, 26, Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea.
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22
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Hu M, Feng X, Liu Q, Liu S, Huang F, Xu H. The ion channels of endomembranes. Physiol Rev 2024; 104:1335-1385. [PMID: 38451235 PMCID: PMC11381013 DOI: 10.1152/physrev.00025.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 02/20/2024] [Accepted: 02/25/2024] [Indexed: 03/08/2024] Open
Abstract
The endomembrane system consists of organellar membranes in the biosynthetic pathway [endoplasmic reticulum (ER), Golgi apparatus, and secretory vesicles] as well as those in the degradative pathway (early endosomes, macropinosomes, phagosomes, autophagosomes, late endosomes, and lysosomes). These endomembrane organelles/vesicles work together to synthesize, modify, package, transport, and degrade proteins, carbohydrates, and lipids, regulating the balance between cellular anabolism and catabolism. Large ion concentration gradients exist across endomembranes: Ca2+ gradients for most endomembrane organelles and H+ gradients for the acidic compartments. Ion (Na+, K+, H+, Ca2+, and Cl-) channels on the organellar membranes control ion flux in response to cellular cues, allowing rapid informational exchange between the cytosol and organelle lumen. Recent advances in organelle proteomics, organellar electrophysiology, and luminal and juxtaorganellar ion imaging have led to molecular identification and functional characterization of about two dozen endomembrane ion channels. For example, whereas IP3R1-3 channels mediate Ca2+ release from the ER in response to neurotransmitter and hormone stimulation, TRPML1-3 and TMEM175 channels mediate lysosomal Ca2+ and H+ release, respectively, in response to nutritional and trafficking cues. This review aims to summarize the current understanding of these endomembrane channels, with a focus on their subcellular localizations, ion permeation properties, gating mechanisms, cell biological functions, and disease relevance.
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Affiliation(s)
- Meiqin Hu
- Department of Neurology and Department of Cardiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China
- New Cornerstone Science Laboratory, Liangzhu Laboratory and School of Basic Medical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Xinghua Feng
- Department of Neurology and Department of Cardiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China
- New Cornerstone Science Laboratory, Liangzhu Laboratory and School of Basic Medical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Qiang Liu
- New Cornerstone Science Laboratory, Liangzhu Laboratory and School of Basic Medical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Siyu Liu
- New Cornerstone Science Laboratory, Liangzhu Laboratory and School of Basic Medical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Fangqian Huang
- New Cornerstone Science Laboratory, Liangzhu Laboratory and School of Basic Medical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Haoxing Xu
- Department of Neurology and Department of Cardiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China
- New Cornerstone Science Laboratory, Liangzhu Laboratory and School of Basic Medical Sciences, Zhejiang University, Hangzhou, People's Republic of China
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, United States
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23
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Passaponti S, Manzan Martins C, Cresti L, Romagnoli R, Paulesu L, Ietta F, Ermini L. Lysosome dynamics during human endometrial stromal cells decidualization: effect of para-nonylphenol. Am J Physiol Cell Physiol 2024; 327:C113-C121. [PMID: 38738312 DOI: 10.1152/ajpcell.00604.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 04/11/2024] [Accepted: 04/28/2024] [Indexed: 05/14/2024]
Abstract
During the process of decidualization, the stromal cells of the endometrium change dynamically to create a favorable environment for embryo implantation. Lysosome activity has often been associated with physiological changes in the endometrium during the preimplantation period and early pregnancy. In this study, the effect of para-nonylphenol (p-NP), an endocrine disruptor, on human immortalized endometrial stromal cells (tHESCs) was investigated. After exposure to p-NP (1 nM and 1 pM), the cells were examined for the decidualization markers connexin-43, insulin like growth factor binding protein 1 (IGFBP1), and prolactin. In addition, the effect of p-NP on lysosome biogenesis and exocytosis was investigated by examining the expression and localization of the transcription factor EB (TFEB) and that of the lysosomal-associated membrane protein 1 (LAMP-1). Finally, we evaluated the effect of p-NP on extracellular matrix (ECM) remodeling using a fibronectin assay. Our results showed that p-NP reduced the expression of prolactin protein, increased the nuclear localization of TFEB, and induced the increase and translocation of the lysosomal protein LAMP-1 to the membrane of tHESCs. The data indicate an impairment of decidualization and suggest an increase in lysosomal biogenesis and exocytosis, which is supported by the higher release of active cathepsin D by tHESCs. Given the importance of cathepsins in the processing and degradation of the ECM during trophoblast invasiveness and migration into the decidua, our results appear to be clear evidence of the negative effects of p-NP on endometrial processes that are fundamental to reproductive success and the establishment of pregnancy.NEW & NOTEWORTHY Endocrine disruptors, such as para-nonylphenol, affect the decidualization of human endometrial stromal cells with an impact on decidualization itself, lysosome biogenesis and exocytosis, and extracellular matrix remodeling. All these alterations may negatively impact embryo implantation with the success of reproduction and the establishment of pregnancy.
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Affiliation(s)
- Sofia Passaponti
- Department of Life Sciences, University of Siena, Siena, Italy
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | | | - Laura Cresti
- Department of Life Sciences, University of Siena, Siena, Italy
| | | | - Luana Paulesu
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Francesca Ietta
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Leonardo Ermini
- Department of Life Sciences, University of Siena, Siena, Italy
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24
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Sengking J, Mahakkanukrauh P. The underlying mechanism of calcium toxicity-induced autophagic cell death and lysosomal degradation in early stage of cerebral ischemia. Anat Cell Biol 2024; 57:155-162. [PMID: 38680098 PMCID: PMC11184419 DOI: 10.5115/acb.24.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/21/2024] [Accepted: 03/11/2024] [Indexed: 05/01/2024] Open
Abstract
Cerebral ischemia is the important cause of worldwide disability and mortality, that is one of the obstruction of blood vessels supplying to the brain. In early stage, glutamate excitotoxicity and high level of intracellular calcium (Ca2+) are the major processes which can promote many downstream signaling involving in neuronal death and brain tissue damaging. Moreover, autophagy, the reusing of damaged cell organelles, is affected in early ischemia. Under ischemic conditions, autophagy plays an important role to maintain energy of the brain and its function. In the other hand, over intracellular Ca2+ accumulation triggers excessive autophagic process and lysosomal degradation leading to autophagic process impairment which finally induce neuronal death. This article reviews the association between intracellular Ca2+ and autophagic process in acute stage of ischemic stroke.
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Affiliation(s)
- Jirakhamon Sengking
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Pasuk Mahakkanukrauh
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Excellence in Osteology Research and Training Center (ORTC), Chaing Mai University, Chiang Mai, Thailand
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Li S, Wang H. Lysosomal Peptide Self-Assembly to Control Cell Behavior. Chembiochem 2024; 25:e202400232. [PMID: 38660742 DOI: 10.1002/cbic.202400232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/14/2024] [Accepted: 04/23/2024] [Indexed: 04/26/2024]
Abstract
Lysosomes are membrane-enclosed organelles that play key roles in degrading and recycling cellular debris, cellular signaling, and energy metabolism processes. Confinement of amphiphilic peptides in the lysosome to construct functional nanostructures through noncovalent interactions is an emerging approach to tune the homeostasis of lysosome. After briefly introducing the importance of lysosome and its functions, we discuss the advantages of lysosomal nanostructure formation for disease therapy. We next discuss the strategy for triggering the self-assembly of peptides in the lysosome, followed by a concise outlook of the future perspective about this emerging research direction.
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Affiliation(s)
- Sangshuang Li
- Department of Chemistry, School of Science, Westlake University, No. 600 Yungu Road, 310030, Hangzhou, Zhejiang Province, China
| | - Huaimin Wang
- Department of Chemistry, School of Science, Westlake University, No. 600 Yungu Road, 310030, Hangzhou, Zhejiang Province, China
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26
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Cen J, Hu N, Shen J, Gao Y, Lu H. Pathological Functions of Lysosomal Ion Channels in the Central Nervous System. Int J Mol Sci 2024; 25:6565. [PMID: 38928271 PMCID: PMC11203704 DOI: 10.3390/ijms25126565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
Lysosomes are highly dynamic organelles that maintain cellular homeostasis and regulate fundamental cellular processes by integrating multiple metabolic pathways. Lysosomal ion channels such as TRPML1-3, TPC1/2, ClC6/7, CLN7, and TMEM175 mediate the flux of Ca2+, Cl-, Na+, H+, and K+ across lysosomal membranes in response to osmotic stimulus, nutrient-dependent signals, and cellular stresses. These ion channels serve as the crucial transducers of cell signals and are essential for the regulation of lysosomal biogenesis, motility, membrane contact site formation, and lysosomal homeostasis. In terms of pathophysiology, genetic variations in these channel genes have been associated with the development of lysosomal storage diseases, neurodegenerative diseases, inflammation, and cancer. This review aims to discuss the current understanding of the role of these ion channels in the central nervous system and to assess their potential as drug targets.
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Affiliation(s)
| | | | | | - Yongjing Gao
- Institute of Pain Medicine and Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China; (J.C.); (N.H.); (J.S.)
| | - Huanjun Lu
- Institute of Pain Medicine and Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China; (J.C.); (N.H.); (J.S.)
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27
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Zhao H, Guo J, Huai J, Li R, Han H, Huang X, Jiang Y, Shuang S. A novel pH-sensitive hemi-cyanine containing tetrahydropyridine ring near-infrared fluorescence probe with lysosome-targeting ability. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 314:124162. [PMID: 38522377 DOI: 10.1016/j.saa.2024.124162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/23/2024] [Accepted: 03/13/2024] [Indexed: 03/26/2024]
Abstract
In recent years, hemi-cyanine dyes have been widely used as biological probes due to their red-light emission characteristics and high fluorescence quantum yield. In this study, we synthesized a novel hemi-cyanine dye containing a tetrahydropyridine ring. A lysosomal target was introduced into its structure to create a new pH-sensitive near-infrared fluorescent probe that successfully targeted lysosomes. The results showed that when the probe solution was excited at the absorption wavelength of 650 nm, its fluorescence emission wavelength was about 700 nm, and the peak intensity changed with different pH values in a wide range. Therefore, this probe enabled non-invasive detection of changes in the acidic environment of lysosomes in living organisms and showed good imaging capabilities. Moreover, the probe displays high sensitivity and good stability. The theoretical calculation of a probe structure has also been completed to discuss the relationship between structure and property.
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Affiliation(s)
- Hongwei Zhao
- School of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China.
| | - Jingrong Guo
- School of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Jiameng Huai
- School of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Ruyue Li
- School of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Hui Han
- School of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Xiao Huang
- Shanxi Science and Technology Resources and Large-Scale Instrument Open-Sharing Center, Taiyuan, 03006, China
| | - Yuna Jiang
- School of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Shaomin Shuang
- School of Chemistry and Chemical Engineering, Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
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28
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Zhang P, Yue L, Leng Q, Chang C, Gan C, Ye T, Cao D. Targeting FGFR for cancer therapy. J Hematol Oncol 2024; 17:39. [PMID: 38831455 PMCID: PMC11149307 DOI: 10.1186/s13045-024-01558-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 05/21/2024] [Indexed: 06/05/2024] Open
Abstract
The FGFR signaling pathway is integral to cellular activities, including proliferation, differentiation, and survival. Dysregulation of this pathway is implicated in numerous human cancers, positioning FGFR as a prominent therapeutic target. Here, we conduct a comprehensive review of the function, signaling pathways and abnormal alterations of FGFR, as well as its role in tumorigenesis and development. Additionally, we provide an in-depth analysis of pivotal phase 2 and 3 clinical trials evaluating the performance and safety of FGFR inhibitors in oncology, thereby shedding light on the current state of clinical research in this field. Then, we highlight four drugs that have been approved for marketing by the FDA, offering insights into their molecular mechanisms and clinical achievements. Our discussion encompasses the intricate landscape of FGFR-driven tumorigenesis, current techniques for pinpointing FGFR anomalies, and clinical experiences with FGFR inhibitor regimens. Furthermore, we discuss the inherent challenges of targeting the FGFR pathway, encompassing resistance mechanisms such as activation by gatekeeper mutations, alternative pathways, and potential adverse reactions. By synthesizing the current evidence, we underscore the potential of FGFR-centric therapies to enhance patient prognosis, while emphasizing the imperative need for continued research to surmount resistance and optimize treatment modalities.
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Affiliation(s)
- Pei Zhang
- Division of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China
| | - Lin Yue
- Laboratory of Gastrointestinal Cancer and Liver Disease, Department of Gastroenterology and Hepatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - QingQing Leng
- Division of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China
| | - Chen Chang
- Division of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China
| | - Cailing Gan
- Laboratory of Gastrointestinal Cancer and Liver Disease, Department of Gastroenterology and Hepatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tinghong Ye
- Laboratory of Gastrointestinal Cancer and Liver Disease, Department of Gastroenterology and Hepatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Dan Cao
- Division of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, No. 37 Guoxue Alley, Chengdu, 610041, Sichuan, China.
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29
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Glitscher M, Benz NI, Sabino C, Murra RO, Hein S, Zahn T, Mhedhbi I, Stefanova D, Bender D, Werner S, Hildt E. Inhibition of Pim kinases triggers a broad antiviral activity by affecting innate immunity and via the PI3K-Akt-mTOR axis the endolysosomal system. Antiviral Res 2024; 226:105891. [PMID: 38649071 DOI: 10.1016/j.antiviral.2024.105891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
Zoonoses such as ZIKV and SARS-CoV-2 pose a severe risk to global health. There is urgent need for broad antiviral strategies based on host-targets filling gaps between pathogen emergence and availability of therapeutic or preventive strategies. Significant reduction of pathogen titers decreases spread of infections and thereby ensures health systems not being overloaded and public life to continue. Based on previously observed interference with FGFR1/2-signaling dependent impact on interferon stimulated gene (ISG)-expression, we identified Pim kinases as promising druggable cellular target. We therefore focused on analyzing the potential of pan-Pim kinase inhibition to trigger a broad antiviral response. The pan-Pim kinase inhibitor AZD1208 exerted an extraordinarily high antiviral effect against various ZIKV isolates, SARS-CoV-2 and HBV. This was reflected by strong reduction in viral RNA, proteins and released infectious particles. Especially in case of SARS-CoV-2, AZD1208 led to a complete removal of viral traces in cells. Kinome-analysis revealed vast changes in kinase landscape upon AZD1208 treatment, especially for inflammation and the PI3K/Akt-pathway. For ZIKV, a clear correlation between antiviral effect and increase in ISG-expression was observed. Based on a cell culture model with impaired ISG-induction, activation of the PI3K-Akt-mTOR axis, leading to major changes in the endolysosomal equilibrium, was identified as second pillar of the antiviral effect triggered by AZD1208-dependent Pim kinase inhibition, also against HBV. We identified Pim-kinases as cellular target for a broad antiviral activity. The antiviral effect exerted by inhibition of Pim kinases is based on at least two pillars: innate immunity and modulation of the endolysosomal system.
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Affiliation(s)
- Mirco Glitscher
- Department of Virology, Paul-Ehrlich-Institute, Paul-Ehrlich-Straße 51-59, D63225, Langen, Germany
| | - Nuka Ivalu Benz
- Department of Virology, Paul-Ehrlich-Institute, Paul-Ehrlich-Straße 51-59, D63225, Langen, Germany
| | - Catarina Sabino
- Department of Virology, Paul-Ehrlich-Institute, Paul-Ehrlich-Straße 51-59, D63225, Langen, Germany
| | - Robin Oliver Murra
- Department of Virology, Paul-Ehrlich-Institute, Paul-Ehrlich-Straße 51-59, D63225, Langen, Germany
| | - Sascha Hein
- Department of Virology, Paul-Ehrlich-Institute, Paul-Ehrlich-Straße 51-59, D63225, Langen, Germany
| | - Tobias Zahn
- Department of Virology, Paul-Ehrlich-Institute, Paul-Ehrlich-Straße 51-59, D63225, Langen, Germany
| | - Ines Mhedhbi
- Department of Virology, Paul-Ehrlich-Institute, Paul-Ehrlich-Straße 51-59, D63225, Langen, Germany
| | - Debora Stefanova
- Department of Biology, Institute of Molecular Health Sciences, ETH Zurich, Otto-Stern-Weg 7, 8093, Zurich, Switzerland
| | - Daniela Bender
- Department of Virology, Paul-Ehrlich-Institute, Paul-Ehrlich-Straße 51-59, D63225, Langen, Germany
| | - Sabine Werner
- Department of Biology, Institute of Molecular Health Sciences, ETH Zurich, Otto-Stern-Weg 7, 8093, Zurich, Switzerland
| | - Eberhard Hildt
- Department of Virology, Paul-Ehrlich-Institute, Paul-Ehrlich-Straße 51-59, D63225, Langen, Germany.
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30
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Basu R, Elmendorf AJ, Lorentz B, Mahler CA, Lazzaro O, App B, Zhou S, Yamamoto Y, Suber M, Wann JC, Roh HC, Sheets PL, Johnson TS, Flak JN. Ventromedial hypothalamic nucleus subset stimulates tissue thermogenesis via preoptic area outputs. Mol Metab 2024; 84:101951. [PMID: 38729241 PMCID: PMC11112375 DOI: 10.1016/j.molmet.2024.101951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/20/2024] [Accepted: 04/27/2024] [Indexed: 05/12/2024] Open
Abstract
OBJECTIVE Hypothalamic signals potently stimulate energy expenditure by engaging peripheral mechanisms to restore energy homeostasis. Previous studies have identified several critical hypothalamic sites (e.g. preoptic area (POA) and ventromedial hypothalamic nucleus (VMN)) that could be part of an interconnected neurocircuit that controls tissue thermogenesis and essential for body weight control. However, the key neurocircuit that can stimulate energy expenditure has not yet been established. METHODS Here, we investigated the downstream mechanisms by which VMN neurons stimulate adipose tissue thermogenesis. We manipulated subsets of VMN neurons acutely as well as chronically and studied its effect on tissue thermogenesis and body weight control, using Sf1Cre and Adcyap1Cre mice and measured physiological parameters under both high-fat diet and standard chow diet conditions. To determine the node efferent to these VMN neurons, that is involved in modulating energy expenditure, we employed electrophysiology and optogenetics experiments combined with measurements using tissue-implantable temperature microchips. RESULTS Activation of the VMN neurons that express the steroidogenic factor 1 (Sf1; VMNSf1 neurons) reduced body weight, adiposity and increased energy expenditure in diet-induced obese mice. This function is likely mediated, at least in part, by the release of the pituitary adenylate cyclase-activating polypeptide (PACAP; encoded by the Adcyap1 gene) by the VMN neurons, since we previously demonstrated that PACAP, at the VMN, plays a key role in energy expenditure control. Thus, we then shifted focus to the subpopulation of VMNSf1 neurons that contain the neuropeptide PACAP (VMNPACAP neurons). Since the VMN neurons do not directly project to the peripheral tissues, we traced the location of the VMNPACAP neurons' efferents. We identified that VMNPACAP neurons project to and activate neurons in the caudal regions of the POA whereby these projections stimulate tissue thermogenesis in brown and beige adipose tissue. We demonstrated that selective activation of caudal POA projections from VMNPACAP neurons induces tissue thermogenesis, most potently in negative energy balance and activating these projections lead to some similar, but mostly unique, patterns of gene expression in brown and beige tissue. Finally, we demonstrated that the activation of the VMNPACAP neurons' efferents that lie at the caudal POA are necessary for inducing tissue thermogenesis in brown and beige adipose tissue. CONCLUSIONS These data indicate that VMNPACAP connections with the caudal POA neurons impact adipose tissue function and are important for induction of tissue thermogenesis. Our data suggests that the VMNPACAP → caudal POA neurocircuit and its components are critical for controlling energy balance by activating energy expenditure and body weight control.
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Affiliation(s)
- Rashmita Basu
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA; Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA
| | - Andrew J Elmendorf
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA; Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA
| | - Betty Lorentz
- Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA
| | - Connor A Mahler
- Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA
| | - Olivia Lazzaro
- Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA
| | - Britany App
- Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA
| | - Shudi Zhou
- Department of Medical Neuroscience, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Yura Yamamoto
- Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA
| | - Mya Suber
- Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA
| | - Jamie C Wann
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Hyun Cheol Roh
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Patrick L Sheets
- Department of Medical Neuroscience, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Travis S Johnson
- Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA; Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, IN, USA; Melvin and Bren Simon Comprehensive Cancer Centre, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jonathan N Flak
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA; Lilly Diabetes Research Center, Indiana Biosciences Research Institute, Indianapolis, IN, USA.
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31
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Lü P, Zhang R, Yang Y, Tang M, Chen K, Pan Y. Transcriptome analysis indicates the mechanisms of BmNPV resistance in Bombyx mori midgut. J Invertebr Pathol 2024; 204:108103. [PMID: 38583693 DOI: 10.1016/j.jip.2024.108103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 03/02/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
Bombyx mori nucleopolyhedrovirus (BmNPV) caused serious economic losses in sericulture. Analyzing the molecular mechanism of silkworms (B. mori) resistance to BmNPV is of great significance for the prevention and control of silkworm virus diseases and the biological control of agricultural lepidopteran pests. In order to clarify the defense mechanisms of silkworms against BmNPV, we constructed a near isogenic line BC8 with high resistance to BmNPV through the highly BmNPV-resistant strain NB and the highly BmNPV-susceptible strain 306. In this study, RNA-Seq technique was used to analyze the transcriptome level differences in the midgut of BC8 and 306 following BmNPV infection. A total of 1350 DEGs were identified. Clustering analysis showed that these genes could be divided into 8 clusters with different expression patterns. Functional annotations based on GO and KEGG analysis indicated that they were involved in various metabolism pathways. Finally, 32 BmNPV defense responsive genes were screened. They were involved in metabolism, reactive oxygen species (ROS), signal transduction and immune response, and insect hormones. The further verification shows that HSP70 should participate in resistance responses of anti-BmNPV. These findings have paved the way in further functional characterization of candidate genes and subsequently can be used in breeding of BmNPV resistance dominant silkworms.
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Affiliation(s)
- Peng Lü
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Rusong Zhang
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Yanhua Yang
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Min Tang
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Keping Chen
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Ye Pan
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
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32
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Atya HB, Sharaf NM, Abdelghany RM, El-Helaly SN, Taha H. Autophagy and exosomes; inter-connected maestros in Alzheimer's disease. Inflammopharmacology 2024; 32:2061-2073. [PMID: 38564092 PMCID: PMC11136856 DOI: 10.1007/s10787-024-01466-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/17/2024] [Indexed: 04/04/2024]
Abstract
Autophagy is a crucial process involved in the degradation and recycling of cytoplasmic components which are transported to the lysosomal compartment by autophagosomes. Exosomes are an important means of communication and signaling in both normal and diseased states, and they have a significant role in the transmission and propagation of proteins, especially proteins implicated in neurodegenerative disorders. Autophagy may affect exosomal processing, but whether autophagy controls the release of aggregated β-amyloid and tau proteins in exosomes of Alzheimer disease (AD) is unclear. Therefore, our study aimed to investigate how modulating autophagy affects the exosomal release of these proteins in animal models of AD. Isolated exosomes from brain tissues of 48 male albino mice were divided into four groups (Negative control, LPS, rapamycin (RAPA), and chloroquine (CQ). LC3 I and LC3 II as well as Aβ and Tau proteins levels were determined. All mice undergone Neuro-behavioral tests (Morris Water maze test, Y-maze test, and Novel Object Recognition). Both LPS and CQ groups showed reduced expression levels of LC3 II and LC3 II/LC3 I ratio. In contrast, RAPA group showed a significant increase in both LC3-II expression and LC3-II/LC3-I ratio. The levels of both Aβ & Tau in exosomes of CQ & LPS groups were higher. While RAPA group showed a significant diminished levels of tau & Aβ proteins. In conclusion, our findings suggest that autophagy alterations in AD can influence the release of Aβ and tau proteins through exosomes, which may impact the spread of misfolded proteins in AD. These results highlight a potential innovative therapeutic approach for combating AD.
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Affiliation(s)
- Hanaa B Atya
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, P.O. Box 11795, Cairo, Egypt.
| | - Nadia Mohamed Sharaf
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo-(GUC), Cairo, Egypt
| | - Ragwa Mansour Abdelghany
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo-(GUC), Cairo, Egypt
| | - Sara Nageeb El-Helaly
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Heba Taha
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, P.O. Box 11795, Cairo, Egypt
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Yamashima T, Mochly-Rosen D, Wakatsuki S, Mizukoshi E, Seike T, Larus IM, Chen CH, Takemura M, Saito H, Ohashi A. Cleavage of Hsp70.1 causes lysosomal cell death under stress conditions. Front Mol Biosci 2024; 11:1378656. [PMID: 38859931 PMCID: PMC11163108 DOI: 10.3389/fmolb.2024.1378656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 05/03/2024] [Indexed: 06/12/2024] Open
Abstract
Autophagy mediates the degradation of intracellular macromolecules and organelles within lysosomes. There are three types of autophagy: macroautophagy, microautophagy, and chaperone-mediated autophagy. Heat shock protein 70.1 (Hsp70.1) exhibits dual functions as a chaperone protein and a lysosomal membrane stabilizer. Since chaperone-mediated autophagy participates in the recycling of ∼30% cytosolic proteins, its disorder causes cell susceptibility to stress conditions. Cargo proteins destined for degradation such as amyloid precursor protein and tau protein are trafficked by Hsp70.1 from the cytosol into lysosomes. Hsp70.1 is composed of an N-terminal nucleotide-binding domain (NBD) and a C-terminal domain that binds to cargo proteins, termed the substrate-binding domain (SBD). The NBD and SBD are connected by the interdomain linker LL1, which modulates the allosteric structure of Hsp70.1 in response to ADP/ATP binding. After the passage of the Hsp70.1-cargo complex through the lysosomal limiting membrane, high-affinity binding of the positive-charged SBD with negative-charged bis(monoacylglycero)phosphate (BMP) at the internal vesicular membranes activates acid sphingomyelinase to generate ceramide for stabilizing lysosomal membranes. As the integrity of the lysosomal limiting membrane is critical to ensure cargo protein degradation within the acidic lumen, the disintegration of the lysosomal limiting membrane is lethal to cells. After the intake of high-fat diets, however, β-oxidation of fatty acids in the mitochondria generates reactive oxygen species, which enhance the oxidation of membrane linoleic acids to produce 4-hydroxy-2-nonenal (4-HNE). In addition, 4-HNE is produced during the heating of linoleic acid-rich vegetable oils and incorporated into the body via deep-fried foods. This endogenous and exogenous 4-HNE synergically causes an increase in its serum and organ levels to induce carbonylation of Hsp70.1 at Arg469, which facilitates its conformational change and access of activated μ-calpain to LL1. Therefore, the cleavage of Hsp70.1 occurs prior to its influx into the lysosomal lumen, which leads to lysosomal membrane permeabilization/rupture. The resultant leakage of cathepsins is responsible for lysosomal cell death, which would be one of the causative factors of lifestyle-related diseases.
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Affiliation(s)
- Tetsumori Yamashima
- Department of Psychiatry and Behavioral Science, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
- Department of Gastroenterology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Soichi Wakatsuki
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Eishiro Mizukoshi
- Department of Gastroenterology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Takuya Seike
- Department of Gastroenterology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Isabel Maria Larus
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Che-Hong Chen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Miho Takemura
- Laboratory of Gene Function, Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Nonoichi, Japan
| | - Hisashi Saito
- Division of Collaborative Research and Development, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Akihiro Ohashi
- Division of Collaborative Research and Development, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
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Gallwitz L, Bleibaum F, Voss M, Schweizer M, Spengler K, Winter D, Zöphel F, Müller S, Lichtenthaler S, Damme M, Saftig P. Cellular depletion of major cathepsin proteases reveals their concerted activities for lysosomal proteolysis. Cell Mol Life Sci 2024; 81:227. [PMID: 38775843 PMCID: PMC11111660 DOI: 10.1007/s00018-024-05274-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/30/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024]
Abstract
Proteins delivered by endocytosis or autophagy to lysosomes are degraded by exo- and endoproteases. In humans 15 lysosomal cathepsins (CTS) act as important physiological regulators. The cysteine proteases CTSB and CTSL and the aspartic protease CTSD are the most abundant and functional important lysosomal proteinases. Whereas their general functions in proteolysis in the lysosome, their individual substrate, cleavage specificity, and their possible sequential action on substrate proteins have been previously studied, their functional redundancy is still poorly understood. To address a possible common role of highly expressed and functional important CTS proteases, we generated CTSB-, CTSD-, CTSL-, and CTSBDL-triple deficient (KO) human neuroblastoma-derived SH-SY5Y cells and CTSB-, CTSD-, CTSL-, CTSZ and CTSBDLZ-quadruple deficient (KO) HeLa cells. These cells with a combined cathepsin deficiency exhibited enlarged lysosomes and accumulated lipofuscin-like storage material. The lack of the three (SH-SY5Y) or four (HeLa) major CTSs caused an impaired autophagic flux and reduced degradation of endocytosed albumin. Proteome analyses of parental and CTS-depleted cells revealed an enrichment of cleaved peptides, lysosome/autophagy-associated proteins, and potentially endocytosed membrane proteins like the amyloid precursor protein (APP), which can be subject to endocytic degradation. Amino- and carboxyterminal APP fragments accumulated in the multiple CTS-deficient cells, suggesting that multiple CTS-mediated cleavage events regularly process APP. In summary, our analyses support the idea that different lysosomal cathepsins act in concert, have at least partially and functionally redundant substrates, regulate protein degradation in autophagy, and control cellular proteostasis, as exemplified by their involvement in the degradation of APP fragments.
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Affiliation(s)
- Lisa Gallwitz
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Olshausenstr. 40, 24098, Kiel, Germany
| | - Florian Bleibaum
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Olshausenstr. 40, 24098, Kiel, Germany
| | - Matthias Voss
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Olshausenstr. 40, 24098, Kiel, Germany
| | - Michaela Schweizer
- Center for Molecular Neurobiology (ZMNH), UKE, Falkenried 94, 20251, Hamburg, Germany
| | - Katharina Spengler
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Olshausenstr. 40, 24098, Kiel, Germany
| | - Dominic Winter
- Institute for Biochemistry and Molecular Biology, Medical Faculty, University of Bonn, Bonn, Germany
| | - Frederic Zöphel
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Olshausenstr. 40, 24098, Kiel, Germany
| | - Stephan Müller
- German Center for Neurodegenerative Diseases (DZNE), München, Feodor-Lynen-Str. 17, 81377, Munich, Germany
- Neuroproteomics, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, 81675, Munich, Germany
| | - Stefan Lichtenthaler
- German Center for Neurodegenerative Diseases (DZNE), München, Feodor-Lynen-Str. 17, 81377, Munich, Germany
- Neuroproteomics, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, 81675, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Markus Damme
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Olshausenstr. 40, 24098, Kiel, Germany.
| | - Paul Saftig
- Institute of Biochemistry, Christian-Albrechts-University Kiel, Olshausenstr. 40, 24098, Kiel, Germany.
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Dowaidar M. Guidelines for the role of autophagy in drug delivery vectors uptake pathways. Heliyon 2024; 10:e30238. [PMID: 38707383 PMCID: PMC11066435 DOI: 10.1016/j.heliyon.2024.e30238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/22/2024] [Accepted: 04/22/2024] [Indexed: 05/07/2024] Open
Abstract
The process of autophagy refers to the intracellular absorption of cytoplasm (such as proteins, nucleic acids, tiny molecules, complete organelles, and so on) into the lysosome, followed by the breakdown of that cytoplasm. The majority of cellular proteins are degraded by a process called autophagy, which is both a naturally occurring activity and one that may be induced by cellular stress. Autophagy is a system that can save cells' integrity in stressful situations by restoring metabolic basics and getting rid of subcellular junk. This happens as a component of an endurance response. This mechanism may have an effect on disease, in addition to its contribution to the homeostasis of individual cells and tissues as well as the control of development in higher species. The main aim of this study is to discuss the guidelines for the role of autophagy in drug delivery vector uptake pathways. In this paper, we discuss the meaning and concept of autophagy, the mechanism of autophagy, the role of autophagy in drug delivery vectors, autophagy-modulating drugs, nanostructures for delivery systems of autophagy modulators, etc. Later in this paper, we talk about how to deliver chemotherapeutics, siRNA, and autophagy inducers and inhibitors. We also talk about how hard it is to make a drug delivery system that takes nanocarriers' roles as autophagy modulators into account.
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Affiliation(s)
- Moataz Dowaidar
- Bioengineering Department, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
- Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
- Biosystems and Machines Research Center, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
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Ma W, Lu Y, Jin X, Lin N, Zhang L, Song Y. Targeting selective autophagy and beyond: From underlying mechanisms to potential therapies. J Adv Res 2024:S2090-1232(24)00199-1. [PMID: 38750694 DOI: 10.1016/j.jare.2024.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 05/21/2024] Open
Abstract
BACKGROUND Autophagy is an evolutionarily conserved turnover process for intracellular substances in eukaryotes, relying on lysosomal (in animals) or vacuolar (in yeast and plants) mechanisms. In the past two decades, emerging evidence suggests that, under specific conditions, autophagy can target particular macromolecules or organelles for degradation, a process termed selective autophagy. Recently, accumulating studies have demonstrated that the abnormality of selective autophagy is closely associated with the occurrence and progression of many human diseases, including neurodegenerative diseases, cancers, metabolic diseases, and cardiovascular diseases. AIM OF REVIEW This review aims at systematically and comprehensively introducing selective autophagy and its role in various diseases, while unravelling the molecular mechanisms of selective autophagy. By providing a theoretical basis for the development of related small-molecule drugs as well as treating related human diseases, this review seeks to contribute to the understanding of selective autophagy and its therapeutic potential. KEY SCIENTIFIC CONCEPTS OF REVIEW In this review, we systematically introduce and dissect the major categories of selective autophagy that have been discovered. We also focus on recent advances in understanding the molecular mechanisms underlying both classical and non-classical selective autophagy. Moreover, the current situation of small-molecule drugs targeting different types of selective autophagy is further summarized, providing valuable insights into the discovery of more candidate small-molecule drugs targeting selective autophagy in the future. On the other hand, we also reveal clinically relevant implementations that are potentially related to selective autophagy, such as predictive approaches and treatments tailored to individual patients.
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Affiliation(s)
- Wei Ma
- Department of Breast Surgery, Department of Ultrasound, Department of Hematology and Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yingying Lu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xin Jin
- Department of Breast Surgery, Department of Ultrasound, Department of Hematology and Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Na Lin
- Department of Breast Surgery, Department of Ultrasound, Department of Hematology and Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang 110001, China.
| | - Lan Zhang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Yaowen Song
- Department of Breast Surgery, Department of Ultrasound, Department of Hematology and Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang 110001, China.
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Do H, Meena NK, Raben N. Failure of Autophagy in Pompe Disease. Biomolecules 2024; 14:573. [PMID: 38785980 PMCID: PMC11118179 DOI: 10.3390/biom14050573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/10/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024] Open
Abstract
Autophagy is an evolutionarily conserved lysosome-dependent degradation of cytoplasmic constituents. The system operates as a critical cellular pro-survival mechanism in response to nutrient deprivation and a variety of stress conditions. On top of that, autophagy is involved in maintaining cellular homeostasis through selective elimination of worn-out or damaged proteins and organelles. The autophagic pathway is largely responsible for the delivery of cytosolic glycogen to the lysosome where it is degraded to glucose via acid α-glucosidase. Although the physiological role of lysosomal glycogenolysis is not fully understood, its significance is highlighted by the manifestations of Pompe disease, which is caused by a deficiency of this lysosomal enzyme. Pompe disease is a severe lysosomal glycogen storage disorder that affects skeletal and cardiac muscles most. In this review, we discuss the basics of autophagy and describe its involvement in the pathogenesis of muscle damage in Pompe disease. Finally, we outline how autophagic pathology in the diseased muscles can be used as a tool to fast track the efficacy of therapeutic interventions.
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Affiliation(s)
| | | | - Nina Raben
- M6P Therapeutics, 20 S. Sarah Street, St. Louis, MO 63108, USA; (H.D.); (N.K.M.)
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Song A, Wang W, Wang H, Ji Y, Zhang Y, Ren J, Qu X. An Alkaline Nanocage Continuously Activates Inflammasomes by Disrupting Multiorganelle Homeostasis for Efficient Pyroptosis. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38697643 DOI: 10.1021/acsami.4c02620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Pyroptosis has garnered increasing attention because of its ability to trigger robust antitumor immunity. Pyroptosis is initiated by the activation of inflammasomes, which are regulated by various organelles. The collaboration among organelles offers several protective mechanisms to prevent activation of the inflammasome, thereby limiting the induction of efficient pyroptosis. Herein, a multiorganelle homeostasis disruptor (denoted BLL) is constructed by encapsulating liposomes and bortezomib (BTZ) within a layered double hydroxide (LDH) nanocage to continuously activate inflammasomes for inducing efficient pyroptosis. In lysosomes, the negatively charged liposomes are released to recruit the NLRP3 inflammasomes through electrostatic interactions. ER stress is induced by BTZ to enhance the activation of the NLRP3 inflammasome. Meanwhile, the BLL nanocage exhibited H+-scavenging ability due to the weak alkalinity of LDH, thus disrupting the homeostasis of the lysosome and alleviating the degradation of the NLRP3 inflammasome by lysosomal-associated autophagy. Our results suggest that the BLL nanocage induces homeostatic imbalance in various organelles and efficient pyroptosis. We hope this work can provide new insights into the design of an efficient pyroptosis inducer by disrupting the homeostatic balance of multiple organelles and promote the development of novel antineoplastic platforms.
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Affiliation(s)
- Anjun Song
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Wenjie Wang
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Huan Wang
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Yanjun Ji
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Yanjie Zhang
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Jinsong Ren
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Xiaogang Qu
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
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Ouyang D, Xiong Y, Hu Z, He J, He S, Liu R, Gao Z, Hu D. mTORC1 - TFEB pathway was involved in sodium arsenite induced lysosomal alteration, oxidative stress and genetic damage in BEAS-2B cells. Toxicology 2024; 504:153795. [PMID: 38574842 DOI: 10.1016/j.tox.2024.153795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/06/2024]
Abstract
The mechanistic target of rapamycin (RAPA) complex 1 (mTORC1) - transcription factor EB (TFEB) pathway plays a crucial role in response to nutritional status, energy and environmental stress for maintaining cellular homeostasis. But there is few reports on its role in the toxic effects of arsenic exposure and the related mechanisms. Here, we show that the exposure of bronchial epithelial cells (BEAS-2B) to sodium arsenite promoted the activation of mTORC1 (p-mTORC1) and the inactivation of TFEB (p-TFEB), the number and activity of lysosomes decreased, the content of reduced glutathione (GSH) and superoxide dismutase (SOD) decreased, the content of malondialdehyde (MDA) increased, the DNA and chromosome damage elevated. Further, when mTORC1 was inhibited with RAPA, p-mTORC1 and p-TFEB down-regulated, GSH and SOD increased, MDA decreased, the DNA and chromosome damage reduced significantly, as compared with the control group. Our data revealed for the first time that mTORC1 - TFEB pathway was involved in sodium arsenite induced lysosomal alteration, oxidative stress and genetic damage in BEAS-2B cells, and it may be a potential intervention target for the toxic effects of arsenic.
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Affiliation(s)
- Di Ouyang
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, PR China
| | - Yiren Xiong
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, PR China
| | - Zuqing Hu
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, PR China
| | - Jiayi He
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, PR China
| | - Shanshan He
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, PR China
| | - Renyi Liu
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, PR China
| | - Zhenjie Gao
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, PR China
| | - Dalin Hu
- Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1838 Guangzhou Road North, Guangzhou 510515, PR China.
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Oliveira AN, Memme JM, Wong J, Hood DA. Dimorphic effect of TFE3 in determining mitochondrial and lysosomal content in muscle following denervation. Skelet Muscle 2024; 14:7. [PMID: 38643162 PMCID: PMC11031958 DOI: 10.1186/s13395-024-00339-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/17/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND Muscle atrophy is a common consequence of the loss of innervation and is accompanied by mitochondrial dysfunction. Mitophagy is the adaptive process through which damaged mitochondria are removed via the lysosomes, which are regulated in part by the transcription factor TFE3. The role of lysosomes and TFE3 are poorly understood in muscle atrophy, and the effect of biological sex is widely underreported. METHODS Wild-type (WT) mice, along with mice lacking TFE3 (KO), a transcriptional regulator of lysosomal and autophagy-related genes, were subjected to unilateral sciatic nerve denervation for up to 7 days, while the contralateral limb was sham-operated and served as an internal control. A subset of animals was treated with colchicine to capture mitophagy flux. RESULTS WT females exhibited elevated oxygen consumption rates during active respiratory states compared to males, however this was blunted in the absence of TFE3. Females exhibited higher mitophagy flux rates and greater lysosomal content basally compared to males that was independent of TFE3 expression. Following denervation, female mice exhibited less muscle atrophy compared to male counterparts. Intriguingly, this sex-dependent muscle sparing was lost in the absence of TFE3. Denervation resulted in 45% and 27% losses of mitochondrial content in WT and KO males respectively, however females were completely protected against this decline. Decreases in mitochondrial function were more severe in WT females compared to males following denervation, as ROS emission was 2.4-fold higher. In response to denervation, LC3-II mitophagy flux was reduced by 44% in females, likely contributing to the maintenance of mitochondrial content and elevated ROS emission, however this response was dysregulated in the absence of TFE3. While both males and females exhibited increased lysosomal content following denervation, this response was augmented in females in a TFE3-dependent manner. CONCLUSIONS Females have higher lysosomal content and mitophagy flux basally compared to males, likely contributing to the improved mitochondrial phenotype. Denervation-induced mitochondrial adaptations were sexually dimorphic, as females preferentially preserve content at the expense of function, while males display a tendency to maintain mitochondrial function. Our data illustrate that TFE3 is vital for the sex-dependent differences in mitochondrial function, and in determining the denervation-induced atrophy phenotype.
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Affiliation(s)
- Ashley N Oliveira
- School of Kinesiology and Health Science Muscle Health Research Centre, York University, 4700 Keele St, Toronto, ON, M3J 1P3, Canada
| | - Jonathan M Memme
- School of Kinesiology and Health Science Muscle Health Research Centre, York University, 4700 Keele St, Toronto, ON, M3J 1P3, Canada
| | - Jenna Wong
- School of Kinesiology and Health Science Muscle Health Research Centre, York University, 4700 Keele St, Toronto, ON, M3J 1P3, Canada
| | - David A Hood
- School of Kinesiology and Health Science Muscle Health Research Centre, York University, 4700 Keele St, Toronto, ON, M3J 1P3, Canada.
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41
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Zhong L, Fu D, Xu J, Tan L, Wu H, Wang M. Rational design of a lysosome-targeted fluorescent probe for monitoring the generation of hydroxyl radicals in ferroptosis pathways. RSC Adv 2024; 14:12864-12872. [PMID: 38650686 PMCID: PMC11033609 DOI: 10.1039/d4ra00562g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
Ferroptosis is a newly discovered iron-dependent form of regulated cell death associated with high levels of hydroxyl radical (˙OH) production. Meanwhile, lysosome dysfunction has been shown to be one of the causes of ferroptosis. Although a variety of ˙OH-responsive fluorescent probes have been developed for detecting intracellular ˙OH in living cells, there are still only few lysosome-targeted probes to monitor the variation in lysosomal ˙OH levels during ferroptosis. Herein, we report a novel ˙OH-specific fluorescent probe HCy-Lyso, which is composed of the hydrocyanine and morpholine moiety. Upon treatment with ˙OH, its hydrocyanine unit was converted to the corresponding cyanine group, thus leading to a large π-conjugation extension of HCy-Lyso, accompanied by a significant fluorescence off-on response. Moreover, after reacting with ˙OH in an acidic environment, the protonation product of HCy-Lyso exhibits a higher fluorescence enhancement, which is suitable for detecting lysosomal ˙OH variation. HCy-Lyso has been utilized for imaging endogenous ˙OH in living cells under phorbol myristate acetate (PMA) stimuli and monitoring the changes in lysosomal ˙OH levels during ferroptosis. Thus, our study proposes a new strategy to design lysosome-targeted and ˙OH-responsive fluorescent probes to investigate the relationship between lysosomes and ferroptosis.
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Affiliation(s)
- Lili Zhong
- Department of Pharmacy, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University) Haikou Hainan 570311 China
| | - Datian Fu
- Department of Pharmacy, Hainan Women and Children's Medical Center Haikou Hainan 570312 China
| | - Jin Xu
- Pharmaceutical and Bioengineering School, Hunan Chemical Vocational Technology College Zhuzhou 412006 China
| | - Linyan Tan
- Department of Pharmacy, Tropical Agricultural Technology College, Hainan Vocational University Haikou Hainan 570216 China
| | - Haimei Wu
- Department of Clinical Pharmacy, Hainan Cancer Hospital Haikou Hainan 570100 China
| | - Min Wang
- Department of Pharmacy, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University) Haikou Hainan 570311 China
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Afjadi MN, Dabirmanesh B, Uversky VN. Therapeutic approaches in proteinopathies. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2024; 206:341-388. [PMID: 38811085 DOI: 10.1016/bs.pmbts.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
A family of maladies known as amyloid disorders, proteinopathy, or amyloidosis, are characterized by the accumulation of abnormal protein aggregates containing cross-β-sheet amyloid fibrils in many organs and tissues. Often, proteins that have been improperly formed or folded make up these fibrils. Nowadays, most treatments for amyloid illness focus on managing symptoms rather than curing or preventing the underlying disease process. However, recent advances in our understanding of the biology of amyloid diseases have led to the development of innovative therapies that target the emergence and accumulation of amyloid fibrils. Examples of these treatments include the use of small compounds, monoclonal antibodies, gene therapy, and others. In the end, even if the majority of therapies for amyloid diseases are symptomatic, greater research into the biology behind these disorders is identifying new targets for potential therapy and paving the way for the development of more effective treatments in the future.
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Affiliation(s)
- Mohsen Nabi Afjadi
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Bahareh Dabirmanesh
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Vladimir N Uversky
- Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institute for Biological Instrumentation, Pushchino, Moscow, Russia; Department of Molecular Medicine and USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.
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Fadl S, Saleh AMM, Abou-Elmagd A, Abdel-Maksoud FM. Prehatching development of the adrenal gland in Japanese quail (Coturnix japonica): Histological, immunohistochemical, and electron microscopic studies. Microsc Res Tech 2024; 87:727-739. [PMID: 37990954 DOI: 10.1002/jemt.24462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 09/09/2023] [Accepted: 11/11/2023] [Indexed: 11/23/2023]
Abstract
The adrenal glands play a key role in maintaining the physiological balance of birds and helping them to survive environmental changes. The objective of the present work was to give a detailed investigation of the histological, ultrastructural, and immunohistochemical findings of the adrenal gland in Japanese quail during the prehatching phase. The current study was performed on 45 healthy Japanese quail embryos at different prehatching periods. Our results showed the primordium of the quail's adrenocortical tissue appeared at 3 days of incubation as a thickening of the splanchnic mesoderm. The prospective chromaffin cells appeared at 5 days as clusters of cells migrated from the neural crest cells along the dorsal aorta toward the interrenal tissue. TH immunoreactivity was observed in the neural crest cells during their migration toward the adrenal primordium. Furthermore, these TH immunopositive cells were intermingled with the developing interrenal cell cords that developed from the coelomic epithelium. NSE immunostaining was detected within the cytoplasm of interrenal cells, chromaffin cells, and ganglion cells. Sox10 is expressed in chromaffin and ganglion cells with different staining intensities. On the 13th day of prehatching, both interrenal and chromaffin cells were β-catenin immunonegative, but on the 17th day, both cells were immunopositively. Our findings show that during prenatal life, the adrenal gland undergoes significant morphological changes. Together, the present data suggest that studying the prenatal development of the adrenal gland in birds is important for advancing our understanding of this critical organ and its functions. RESEARCH HIGHLIGHTS: The present study aimed to give a detailed study of the histological, ultrastructural, and immunohistochemical investigations of the adrenal gland in Japanese quail during the prehatching period. The interrenal primordium was observed on the third embryonic day, on the fifth ED the primordium of the chromaffin tissue appeared as row of migrating neural crest cell. At the ultrastructural level, the interrenal cells take steroid-secreting cells characters, they have varying amounts of lipid droplets and abundant mitochondria at 15th ED contained moderate number of lysosomes and mitochondria.
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Affiliation(s)
- Saher Fadl
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Abdelmohaimen M M Saleh
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Ahmed Abou-Elmagd
- Department of Cell and Tissues, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Fatma M Abdel-Maksoud
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
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Ding WX, Ma X, Kim S, Wang S, Ni HM. Recent insights about autophagy in pancreatitis. EGASTROENTEROLOGY 2024; 2:e100057. [PMID: 38770349 PMCID: PMC11104508 DOI: 10.1136/egastro-2023-100057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Acute pancreatitis is a common inflammatory gastrointestinal disease without any successful treatment. Pancreatic exocrine acinar cells have high rates of protein synthesis to produce and secrete large amounts of digestive enzymes. When the regulation of organelle and protein homeostasis is disrupted, it can lead to endoplasmic reticulum (ER) stress, damage to the mitochondria and improper intracellular trypsinogen activation, ultimately resulting in acinar cell damage and the onset of pancreatitis. To balance the homeostasis of organelles and adapt to protect themselves from organelle stress, cells use protective mechanisms such as autophagy. In the mouse pancreas, defective basal autophagy disrupts ER homoeostasis, leading to ER stress and trypsinogen activation, resulting in spontaneous pancreatitis. In this review, we discuss the regulation of autophagy and its physiological role in maintaining acinar cell homeostasis and function. We also summarise the current understanding of the mechanisms and the role of defective autophagy at multiple stages in experimental pancreatitis induced by cerulein or alcohol.
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Affiliation(s)
- Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Xiaowen Ma
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Sydney Kim
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Shaogui Wang
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Hong-Min Ni
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
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Wu Q, Yuan C, Wang J, Li G, Zhu C, Li L, Wang Z, Lv Q, Mei W. Uridine-Modified Ruthenium(II) Complex as Lysosomal LIMP-2 Targeting Photodynamic Therapy Photosensitizer for the Treatment of Triple-Negative Breast Cancer. JACS AU 2024; 4:1081-1096. [PMID: 38559730 PMCID: PMC10976599 DOI: 10.1021/jacsau.3c00808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/19/2024] [Accepted: 01/19/2024] [Indexed: 04/04/2024]
Abstract
Lysosome-targeted photodynamic therapy, which enhances reactive oxygen species (ROS)-responsive tumor cell death, has emerged as a promising strategy for cancer treatment. Herein, a uridine (dU)-modified Ru(II) complex (RdU) was synthesized by click chemistry. It was found that RdU exhibits impressive photo-induced inhibition against the growth of triple-negative breast cancer (TNBC) cells in normoxic and hypoxic microenvironments through ROS production. It was further revealed that RdU induces ferroptosis of MDA-MB-231 cells under light irradiation (650 nm, 300 mW/cm2). Additional experiments showed that RdU binds to lysosomal integral membrane protein 2 (LIMP-2), which was confirmed by the fact that RdU selectively localizes in the lysosomes of MDA-MB-231 cells and significantly augments the levels of LIMP-2. Molecular docking simulations and an isothermal titration calorimetry assay also showed that RdU has a high affinity to LIMP-2. Finally, in vivo studies in tumor-bearing (MDA-MB-231 cells) nude mice showed that RdU exerts promising photodynamic therapeutic effects on TNBC tumors. In summary, the uridine-modified Ru(II) complex has been developed as a potential LIMP-2 targeting agent for TNBC treatment through enhancing ROS production and promoting ferroptosis.
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Affiliation(s)
- Qiong Wu
- School
of Pharmacy, Guangdong Engineering Technology Research Centre of Molecular
Probe and Biomedicine Imaging, Guangdong
Pharmaceutical University, Guangzhou 510006, China
- Institute
of Biological and Medical Engineering, Guangdong
Academy of Sciences, Guangzhou 530316, China
| | - Chanling Yuan
- School
of Pharmacy, Guangdong Engineering Technology Research Centre of Molecular
Probe and Biomedicine Imaging, Guangdong
Pharmaceutical University, Guangzhou 510006, China
| | - Jiacheng Wang
- School
of Pharmacy, Guangdong Engineering Technology Research Centre of Molecular
Probe and Biomedicine Imaging, Guangdong
Pharmaceutical University, Guangzhou 510006, China
| | - Guohu Li
- School
of Pharmacy, Guangdong Engineering Technology Research Centre of Molecular
Probe and Biomedicine Imaging, Guangdong
Pharmaceutical University, Guangzhou 510006, China
| | - Chunguang Zhu
- School
of Pharmacy, Guangdong Engineering Technology Research Centre of Molecular
Probe and Biomedicine Imaging, Guangdong
Pharmaceutical University, Guangzhou 510006, China
| | - Li Li
- School
of Pharmacy, Guangdong Engineering Technology Research Centre of Molecular
Probe and Biomedicine Imaging, Guangdong
Pharmaceutical University, Guangzhou 510006, China
| | - Zongtao Wang
- School
of Pharmacy, Guangdong Engineering Technology Research Centre of Molecular
Probe and Biomedicine Imaging, Guangdong
Pharmaceutical University, Guangzhou 510006, China
| | - Qingshuang Lv
- School
of Pharmacy, Guangdong Engineering Technology Research Centre of Molecular
Probe and Biomedicine Imaging, Guangdong
Pharmaceutical University, Guangzhou 510006, China
| | - Wenjie Mei
- School
of Pharmacy, Guangdong Engineering Technology Research Centre of Molecular
Probe and Biomedicine Imaging, Guangdong
Pharmaceutical University, Guangzhou 510006, China
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46
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Bond C, Hugelier S, Xing J, Sorokina EM, Lakadamyali M. Multiplexed DNA-PAINT Imaging of the Heterogeneity of Late Endosome/Lysosome Protein Composition. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.18.585634. [PMID: 38562776 PMCID: PMC10983937 DOI: 10.1101/2024.03.18.585634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Late endosomes/lysosomes (LELs) are crucial for numerous physiological processes and their dysfunction is linked to many diseases. Proteomic analyses have identified hundreds of LEL proteins, however, whether these proteins are uniformly present on each LEL, or if there are cell-type dependent LEL sub-populations with unique protein compositions is unclear. We employed a quantitative, multiplexed DNA-PAINT super-resolution approach to examine the distribution of six key LEL proteins (LAMP1, LAMP2, CD63, TMEM192, NPC1 and LAMTOR4) on individual LELs. While LAMP1 and LAMP2 were abundant across LELs, marking a common population, most analyzed proteins were associated with specific LEL subpopulations. Our multiplexed imaging approach identified up to eight different LEL subpopulations based on their unique membrane protein composition. Additionally, our analysis of the spatial relationships between these subpopulations and mitochondria revealed a cell-type specific tendency for NPC1-positive LELs to be closely positioned to mitochondria. Our approach will be broadly applicable to determining organelle heterogeneity with single organelle resolution in many biological contexts. Summary This study develops a multiplexed and quantitative DNA-PAINT super-resolution imaging pipeline to investigate the distribution of late endosomal/lysosomal (LEL) proteins across individual LELs, revealing cell-type specific LEL sub-populations with unique protein compositions, offering insights into organelle heterogeneity at single-organelle resolution.
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Xu D, Li Y, Yin S, Huang F. Strategies to address key challenges of metallacycle/metallacage-based supramolecular coordination complexes in biomedical applications. Chem Soc Rev 2024; 53:3167-3204. [PMID: 38385584 DOI: 10.1039/d3cs00926b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Owing to their capacity for dynamically linking two or more functional molecules, supramolecular coordination complexes (SCCs), exemplified by two-dimensional (2D) metallacycles and three-dimensional (3D) metallacages, have gained increasing significance in biomedical applications. However, their inherent hydrophobicity and self-assembly driven by heavy metal ions present common challenges in their applications. These challenges can be overcome by enhancing the aqueous solubility and in vivo circulation stability of SCCs, alongside minimizing their side effects during treatment. Addressing these challenges is crucial for advancing the fundamental research of SCCs and their subsequent clinical translation. In this review, drawing on extensive contemporary research, we offer a thorough and systematic analysis of the strategies employed by SCCs to surmount these prevalent yet pivotal obstacles. Additionally, we explore further potential challenges and prospects for the broader application of SCCs in the biomedical field.
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Affiliation(s)
- Dongdong Xu
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, P. R. China.
| | - Yang Li
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, P. R. China.
| | - Shouchun Yin
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, P. R. China.
| | - Feihe Huang
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310058, P. R. China.
- Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P. R. China
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48
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Zhang F, Jiang R, Sun S, Wu C, Yu Q, Awadasseid A, Wang J, Zhang W. Recent advances and mechanisms of action of PD-L1 degraders as potential therapeutic agents. Eur J Med Chem 2024; 268:116267. [PMID: 38422701 DOI: 10.1016/j.ejmech.2024.116267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 02/01/2024] [Accepted: 02/18/2024] [Indexed: 03/02/2024]
Abstract
PD-L1 is an important immune checkpoint protein that can bind to T cells' PD-1 receptor, thereby promoting immune escape from tumors. In recent years, many researchers have developed strategies to degrade PD-L1 to improve the effect of immunotherapy. The study of degrading PD-L1 provides new opportunities for immunotherapy. Here, we mainly summarize and review the current active molecules and mechanisms that mediate the degradation of immature and mature PD-L1 during the post-translational modification stages, involving PD-L1 phosphorylation, glycosylation, palmitoylation, ubiquitination, and the autophagy-lysosomal process. This review expects that by degrading PD-L1 protein, we will not only gain a better understanding of oncogenic mechanisms involving tumor PD-L1 protein but also provide a new way to improve immunotherapy.
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Affiliation(s)
- Feng Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Ruiya Jiang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shishi Sun
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Caiyun Wu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Qimeng Yu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Annoor Awadasseid
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, 310014, China; Moganshan Institute, Zhejiang University of Technology, Deqing, China
| | - Jianwei Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Wen Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China; Institute of Drug Development & Chemical Biology, Zhejiang University of Technology, Hangzhou, 310014, China.
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Hewson L, Choo A, Webber DL, Trim PJ, Snel MF, Fedele AO, Hopwood JJ, Hemsley KM, O'Keefe LV. Drosophila melanogaster models of MPS IIIC (Hgsnat-deficiency) highlight the role of glia in disease presentation. J Inherit Metab Dis 2024; 47:340-354. [PMID: 38238109 DOI: 10.1002/jimd.12712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 03/16/2024]
Abstract
Sanfilippo syndrome (Mucopolysaccharidosis type III or MPS III) is a recessively inherited neurodegenerative lysosomal storage disorder. Mutations in genes encoding enzymes in the heparan sulphate degradation pathway lead to the accumulation of partially degraded heparan sulphate, resulting ultimately in the development of neurological deficits. Mutations in the gene encoding the membrane protein heparan-α-glucosaminide N-acetyltransferase (HGSNAT; EC2.3.1.78) cause MPS IIIC (OMIM#252930), typified by impaired cognition, sleep-wake cycle changes, hyperactivity and early death, often before adulthood. The precise disease mechanism that causes symptom emergence remains unknown, posing a significant challenge in the development of effective therapeutics. As HGSNAT is conserved in Drosophila melanogaster, we now describe the creation and characterisation of the first Drosophila models of MPS IIIC. Flies with either an endogenous insertion mutation or RNAi-mediated knockdown of hgsnat were confirmed to have a reduced level of HGSNAT transcripts and age-dependent accumulation of heparan sulphate leading to engorgement of the endo/lysosomal compartment. This resulted in abnormalities at the pre-synapse, defective climbing and reduced overall activity. Altered circadian rhythms (shift in peak morning activity) were seen in hgsnat neuronal knockdown lines. Further, when hgsnat was knocked down in specific glial subsets (wrapping, cortical, astrocytes or subperineural glia), impaired climbing or reduced activity was noted, implying that hgsnat function in these specific glial subtypes contributes significantly to this behaviour and targeting treatments to these cell groups may be necessary to ameliorate or prevent symptom onset. These novel models of MPS IIIC provide critical research tools for delineating the key cellular pathways causal in the onset of neurodegeneration in this presently untreatable disorder.
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Affiliation(s)
- Laura Hewson
- Department of Molecular and Biomedical Science, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Amanda Choo
- Department of Molecular and Biomedical Science, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Dani L Webber
- Department of Molecular and Biomedical Science, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Paul J Trim
- Proteomics, Metabolomics & MS-Imaging Core, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Marten F Snel
- Proteomics, Metabolomics & MS-Imaging Core, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Anthony O Fedele
- Hopwood Centre for Neurobiology, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - John J Hopwood
- Hopwood Centre for Neurobiology, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Kim M Hemsley
- Childhood Dementia Research Group, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, South Australia, Australia
| | - Louise V O'Keefe
- Department of Molecular and Biomedical Science, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
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50
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Ge K, Du X, Liu H, Meng R, Wu C, Zhang Z, Liang X, Yang J, Zhang H. The cytotoxicity of microcystin-LR: ultrastructural and functional damage of cells. Arch Toxicol 2024; 98:663-687. [PMID: 38252150 DOI: 10.1007/s00204-023-03676-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024]
Abstract
Microcystin-LR (MC-LR) is a toxin produced by cyanobacteria, which is widely distributed in eutrophic water bodies and has multi-organ toxicity. Previous cytotoxicity studies have mostly elucidated the effects of MC-LR on intracellular-related factors, proteins, and DNA at the molecular level. However, there have been few studies on the adverse effects of MC-LR on cell ultrastructure and function. Therefore, research on the cytotoxicity of MC-LR in recent years was collected and summarized. It was found that MC-LR can induce a series of cytotoxic effects, including decreased cell viability, induced autophagy, apoptosis and necrosis, altered cell cycle, altered cell morphology, abnormal cell migration and invasion as well as leading to genetic damage. The above cytotoxic effects were related to the damage of various ultrastructure and functions such as cell membranes and mitochondria. Furthermore, MC-LR can disrupt cell ultrastructure and function by inducing oxidative stress and inhibiting protein phosphatase activity. In addition, the combined toxic effects of MC-LR and other environmental pollutants were investigated. This review explored the toxic targets of MC-LR at the subcellular level, which will provide new ideas for the prevention and treatment of multi-organ toxicity caused by MC-LR.
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Affiliation(s)
- Kangfeng Ge
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Xingde Du
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Haohao Liu
- Department of Public Health, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450001, China
| | - Ruiyang Meng
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Chunrui Wu
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Zongxin Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Xiao Liang
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Jun Yang
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Huizhen Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
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